Re: Linux 3.10.14
From: Greg KH
Date: Tue Oct 01 2013 - 16:03:44 EST
diff --git a/Makefile b/Makefile
index 25d38b7..129c49f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,6 +1,6 @@
VERSION = 3
PATCHLEVEL = 10
-SUBLEVEL = 13
+SUBLEVEL = 14
EXTRAVERSION =
NAME = TOSSUG Baby Fish
diff --git a/block/cfq-iosched.c b/block/cfq-iosched.c
index d5bbdcf..c410752 100644
--- a/block/cfq-iosched.c
+++ b/block/cfq-iosched.c
@@ -1803,7 +1803,7 @@ static u64 cfqg_prfill_avg_queue_size(struct seq_file *sf,
if (samples) {
v = blkg_stat_read(&cfqg->stats.avg_queue_size_sum);
- do_div(v, samples);
+ v = div64_u64(v, samples);
}
__blkg_prfill_u64(sf, pd, v);
return 0;
diff --git a/drivers/gpu/drm/ast/ast_drv.h b/drivers/gpu/drm/ast/ast_drv.h
index 02e52d5..b6b7d70 100644
--- a/drivers/gpu/drm/ast/ast_drv.h
+++ b/drivers/gpu/drm/ast/ast_drv.h
@@ -177,7 +177,7 @@ uint8_t ast_get_index_reg_mask(struct ast_private *ast,
static inline void ast_open_key(struct ast_private *ast)
{
- ast_set_index_reg_mask(ast, AST_IO_CRTC_PORT, 0xA1, 0xFF, 0x04);
+ ast_set_index_reg(ast, AST_IO_CRTC_PORT, 0x80, 0xA8);
}
#define AST_VIDMEM_SIZE_8M 0x00800000
diff --git a/drivers/gpu/drm/drm_crtc.c b/drivers/gpu/drm/drm_crtc.c
index e7e9242..8759d69 100644
--- a/drivers/gpu/drm/drm_crtc.c
+++ b/drivers/gpu/drm/drm_crtc.c
@@ -2501,10 +2501,22 @@ int drm_mode_getfb(struct drm_device *dev,
r->depth = fb->depth;
r->bpp = fb->bits_per_pixel;
r->pitch = fb->pitches[0];
- if (fb->funcs->create_handle)
- ret = fb->funcs->create_handle(fb, file_priv, &r->handle);
- else
+ if (fb->funcs->create_handle) {
+ if (file_priv->is_master || capable(CAP_SYS_ADMIN)) {
+ ret = fb->funcs->create_handle(fb, file_priv,
+ &r->handle);
+ } else {
+ /* GET_FB() is an unprivileged ioctl so we must not
+ * return a buffer-handle to non-master processes! For
+ * backwards-compatibility reasons, we cannot make
+ * GET_FB() privileged, so just return an invalid handle
+ * for non-masters. */
+ r->handle = 0;
+ ret = 0;
+ }
+ } else {
ret = -ENODEV;
+ }
drm_framebuffer_unreference(fb);
diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c
index e5e32869..c8d16a6 100644
--- a/drivers/gpu/drm/i915/i915_irq.c
+++ b/drivers/gpu/drm/i915/i915_irq.c
@@ -1009,6 +1009,34 @@ done:
return ret;
}
+static void i915_error_wake_up(struct drm_i915_private *dev_priv,
+ bool reset_completed)
+{
+ struct intel_ring_buffer *ring;
+ int i;
+
+ /*
+ * Notify all waiters for GPU completion events that reset state has
+ * been changed, and that they need to restart their wait after
+ * checking for potential errors (and bail out to drop locks if there is
+ * a gpu reset pending so that i915_error_work_func can acquire them).
+ */
+
+ /* Wake up __wait_seqno, potentially holding dev->struct_mutex. */
+ for_each_ring(ring, dev_priv, i)
+ wake_up_all(&ring->irq_queue);
+
+ /* Wake up intel_crtc_wait_for_pending_flips, holding crtc->mutex. */
+ wake_up_all(&dev_priv->pending_flip_queue);
+
+ /*
+ * Signal tasks blocked in i915_gem_wait_for_error that the pending
+ * reset state is cleared.
+ */
+ if (reset_completed)
+ wake_up_all(&dev_priv->gpu_error.reset_queue);
+}
+
/**
* i915_error_work_func - do process context error handling work
* @work: work struct
@@ -1023,11 +1051,10 @@ static void i915_error_work_func(struct work_struct *work)
drm_i915_private_t *dev_priv = container_of(error, drm_i915_private_t,
gpu_error);
struct drm_device *dev = dev_priv->dev;
- struct intel_ring_buffer *ring;
char *error_event[] = { "ERROR=1", NULL };
char *reset_event[] = { "RESET=1", NULL };
char *reset_done_event[] = { "ERROR=0", NULL };
- int i, ret;
+ int ret;
kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE, error_event);
@@ -1046,8 +1073,16 @@ static void i915_error_work_func(struct work_struct *work)
kobject_uevent_env(&dev->primary->kdev.kobj, KOBJ_CHANGE,
reset_event);
+ /*
+ * All state reset _must_ be completed before we update the
+ * reset counter, for otherwise waiters might miss the reset
+ * pending state and not properly drop locks, resulting in
+ * deadlocks with the reset work.
+ */
ret = i915_reset(dev);
+ intel_display_handle_reset(dev);
+
if (ret == 0) {
/*
* After all the gem state is reset, increment the reset
@@ -1068,12 +1103,11 @@ static void i915_error_work_func(struct work_struct *work)
atomic_set(&error->reset_counter, I915_WEDGED);
}
- for_each_ring(ring, dev_priv, i)
- wake_up_all(&ring->irq_queue);
-
- intel_display_handle_reset(dev);
-
- wake_up_all(&dev_priv->gpu_error.reset_queue);
+ /*
+ * Note: The wake_up also serves as a memory barrier so that
+ * waiters see the update value of the reset counter atomic_t.
+ */
+ i915_error_wake_up(dev_priv, true);
}
}
@@ -1709,8 +1743,6 @@ static void i915_report_and_clear_eir(struct drm_device *dev)
void i915_handle_error(struct drm_device *dev, bool wedged)
{
struct drm_i915_private *dev_priv = dev->dev_private;
- struct intel_ring_buffer *ring;
- int i;
i915_capture_error_state(dev);
i915_report_and_clear_eir(dev);
@@ -1720,14 +1752,28 @@ void i915_handle_error(struct drm_device *dev, bool wedged)
&dev_priv->gpu_error.reset_counter);
/*
- * Wakeup waiting processes so that the reset work item
- * doesn't deadlock trying to grab various locks.
+ * Wakeup waiting processes so that the reset work function
+ * i915_error_work_func doesn't deadlock trying to grab various
+ * locks. By bumping the reset counter first, the woken
+ * processes will see a reset in progress and back off,
+ * releasing their locks and then wait for the reset completion.
+ * We must do this for _all_ gpu waiters that might hold locks
+ * that the reset work needs to acquire.
+ *
+ * Note: The wake_up serves as the required memory barrier to
+ * ensure that the waiters see the updated value of the reset
+ * counter atomic_t.
*/
- for_each_ring(ring, dev_priv, i)
- wake_up_all(&ring->irq_queue);
+ i915_error_wake_up(dev_priv, false);
}
- queue_work(dev_priv->wq, &dev_priv->gpu_error.work);
+ /*
+ * Our reset work can grab modeset locks (since it needs to reset the
+ * state of outstanding pagelips). Hence it must not be run on our own
+ * dev-priv->wq work queue for otherwise the flush_work in the pageflip
+ * code will deadlock.
+ */
+ schedule_work(&dev_priv->gpu_error.work);
}
static void __always_unused i915_pageflip_stall_check(struct drm_device *dev, int pipe)
diff --git a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
index f02fd9f..a66b27c 100644
--- a/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
+++ b/drivers/gpu/drm/nouveau/core/engine/disp/dacnv50.c
@@ -49,18 +49,23 @@ int
nv50_dac_sense(struct nv50_disp_priv *priv, int or, u32 loadval)
{
const u32 doff = (or * 0x800);
- int load = -EINVAL;
+
nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80150000);
nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
+
nv_wr32(priv, 0x61a00c + doff, 0x00100000 | loadval);
mdelay(9);
udelay(500);
- nv_wr32(priv, 0x61a00c + doff, 0x80000000);
- load = (nv_rd32(priv, 0x61a00c + doff) & 0x38000000) >> 27;
- nv_wr32(priv, 0x61a00c + doff, 0x00000000);
+ loadval = nv_mask(priv, 0x61a00c + doff, 0xffffffff, 0x00000000);
+
nv_mask(priv, 0x61a004 + doff, 0x807f0000, 0x80550000);
nv_wait(priv, 0x61a004 + doff, 0x80000000, 0x00000000);
- return load;
+
+ nv_debug(priv, "DAC%d sense: 0x%08x\n", or, loadval);
+ if (!(loadval & 0x80000000))
+ return -ETIMEDOUT;
+
+ return (loadval & 0x38000000) >> 27;
}
int
diff --git a/drivers/gpu/drm/radeon/atombios_dp.c b/drivers/gpu/drm/radeon/atombios_dp.c
index 32501f6..1602398 100644
--- a/drivers/gpu/drm/radeon/atombios_dp.c
+++ b/drivers/gpu/drm/radeon/atombios_dp.c
@@ -50,7 +50,7 @@ static char *pre_emph_names[] = {
* or from atom. Note that atom operates on
* dw units.
*/
-static void radeon_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
+void radeon_atom_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le)
{
#ifdef __BIG_ENDIAN
u8 src_tmp[20], dst_tmp[20]; /* used for byteswapping */
@@ -100,7 +100,7 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan,
base = (unsigned char *)(rdev->mode_info.atom_context->scratch + 1);
- radeon_copy_swap(base, send, send_bytes, true);
+ radeon_atom_copy_swap(base, send, send_bytes, true);
args.v1.lpAuxRequest = cpu_to_le16((u16)(0 + 4));
args.v1.lpDataOut = cpu_to_le16((u16)(16 + 4));
@@ -137,7 +137,7 @@ static int radeon_process_aux_ch(struct radeon_i2c_chan *chan,
recv_bytes = recv_size;
if (recv && recv_size)
- radeon_copy_swap(recv, base + 16, recv_bytes, false);
+ radeon_atom_copy_swap(recv, base + 16, recv_bytes, false);
return recv_bytes;
}
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 4120d35..c272d88 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -1636,8 +1636,12 @@ radeon_atom_encoder_dpms_dig(struct drm_encoder *encoder, int mode)
atombios_dig_encoder_setup(encoder, ATOM_ENABLE, 0);
atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_SETUP, 0, 0);
atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE, 0, 0);
- /* some early dce3.2 boards have a bug in their transmitter control table */
- if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730))
+ /* some dce3.x boards have a bug in their transmitter control table.
+ * ACTION_ENABLE_OUTPUT can probably be dropped since ACTION_ENABLE
+ * does the same thing and more.
+ */
+ if ((rdev->family != CHIP_RV710) && (rdev->family != CHIP_RV730) &&
+ (rdev->family != CHIP_RS880))
atombios_dig_transmitter_setup(encoder, ATOM_TRANSMITTER_ACTION_ENABLE_OUTPUT, 0, 0);
}
if (ENCODER_MODE_IS_DP(atombios_get_encoder_mode(encoder)) && connector) {
diff --git a/drivers/gpu/drm/radeon/atombios_i2c.c b/drivers/gpu/drm/radeon/atombios_i2c.c
index 082338d..2ca389d 100644
--- a/drivers/gpu/drm/radeon/atombios_i2c.c
+++ b/drivers/gpu/drm/radeon/atombios_i2c.c
@@ -27,6 +27,8 @@
#include "radeon.h"
#include "atom.h"
+extern void radeon_atom_copy_swap(u8 *dst, u8 *src, u8 num_bytes, bool to_le);
+
#define TARGET_HW_I2C_CLOCK 50
/* these are a limitation of ProcessI2cChannelTransaction not the hw */
@@ -77,7 +79,7 @@ static int radeon_process_i2c_ch(struct radeon_i2c_chan *chan,
}
if (!(flags & HW_I2C_WRITE))
- memcpy(buf, base, num);
+ radeon_atom_copy_swap(buf, base, num, false);
return 0;
}
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 687b421..2068df1 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -1718,7 +1718,8 @@ static u32 evergreen_line_buffer_adjust(struct radeon_device *rdev,
struct drm_display_mode *mode,
struct drm_display_mode *other_mode)
{
- u32 tmp;
+ u32 tmp, buffer_alloc, i;
+ u32 pipe_offset = radeon_crtc->crtc_id * 0x20;
/*
* Line Buffer Setup
* There are 3 line buffers, each one shared by 2 display controllers.
@@ -1741,18 +1742,34 @@ static u32 evergreen_line_buffer_adjust(struct radeon_device *rdev,
* non-linked crtcs for maximum line buffer allocation.
*/
if (radeon_crtc->base.enabled && mode) {
- if (other_mode)
+ if (other_mode) {
tmp = 0; /* 1/2 */
- else
+ buffer_alloc = 1;
+ } else {
tmp = 2; /* whole */
- } else
+ buffer_alloc = 2;
+ }
+ } else {
tmp = 0;
+ buffer_alloc = 0;
+ }
/* second controller of the pair uses second half of the lb */
if (radeon_crtc->crtc_id % 2)
tmp += 4;
WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset, tmp);
+ if (ASIC_IS_DCE41(rdev) || ASIC_IS_DCE5(rdev)) {
+ WREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset,
+ DMIF_BUFFERS_ALLOCATED(buffer_alloc));
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ if (RREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset) &
+ DMIF_BUFFERS_ALLOCATED_COMPLETED)
+ break;
+ udelay(1);
+ }
+ }
+
if (radeon_crtc->base.enabled && mode) {
switch (tmp) {
case 0:
diff --git a/drivers/gpu/drm/radeon/evergreend.h b/drivers/gpu/drm/radeon/evergreend.h
index 75c0563..9490972 100644
--- a/drivers/gpu/drm/radeon/evergreend.h
+++ b/drivers/gpu/drm/radeon/evergreend.h
@@ -810,6 +810,10 @@
# define LATENCY_LOW_WATERMARK(x) ((x) << 0)
# define LATENCY_HIGH_WATERMARK(x) ((x) << 16)
+#define PIPE0_DMIF_BUFFER_CONTROL 0x0ca0
+# define DMIF_BUFFERS_ALLOCATED(x) ((x) << 0)
+# define DMIF_BUFFERS_ALLOCATED_COMPLETED (1 << 4)
+
#define IH_RB_CNTL 0x3e00
# define IH_RB_ENABLE (1 << 0)
# define IH_IB_SIZE(x) ((x) << 1) /* log2 */
diff --git a/drivers/gpu/drm/radeon/radeon_atombios.c b/drivers/gpu/drm/radeon/radeon_atombios.c
index dea6f63c..239a407 100644
--- a/drivers/gpu/drm/radeon/radeon_atombios.c
+++ b/drivers/gpu/drm/radeon/radeon_atombios.c
@@ -715,13 +715,16 @@ bool radeon_get_atom_connector_info_from_object_table(struct drm_device *dev)
(ATOM_SRC_DST_TABLE_FOR_ONE_OBJECT *)
(ctx->bios + data_offset +
le16_to_cpu(router_obj->asObjects[k].usSrcDstTableOffset));
+ u8 *num_dst_objs = (u8 *)
+ ((u8 *)router_src_dst_table + 1 +
+ (router_src_dst_table->ucNumberOfSrc * 2));
+ u16 *dst_objs = (u16 *)(num_dst_objs + 1);
int enum_id;
router.router_id = router_obj_id;
- for (enum_id = 0; enum_id < router_src_dst_table->ucNumberOfDst;
- enum_id++) {
+ for (enum_id = 0; enum_id < (*num_dst_objs); enum_id++) {
if (le16_to_cpu(path->usConnObjectId) ==
- le16_to_cpu(router_src_dst_table->usDstObjectID[enum_id]))
+ le16_to_cpu(dst_objs[enum_id]))
break;
}
@@ -1651,7 +1654,9 @@ struct radeon_encoder_atom_dig *radeon_atombios_get_lvds_info(struct
kfree(edid);
}
}
- record += sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
+ record += fake_edid_record->ucFakeEDIDLength ?
+ fake_edid_record->ucFakeEDIDLength + 2 :
+ sizeof(ATOM_FAKE_EDID_PATCH_RECORD);
break;
case LCD_PANEL_RESOLUTION_RECORD_TYPE:
panel_res_record = (ATOM_PANEL_RESOLUTION_PATCH_RECORD *)record;
diff --git a/drivers/gpu/drm/radeon/radeon_connectors.c b/drivers/gpu/drm/radeon/radeon_connectors.c
index 2399f25..5a87c9f 100644
--- a/drivers/gpu/drm/radeon/radeon_connectors.c
+++ b/drivers/gpu/drm/radeon/radeon_connectors.c
@@ -1489,6 +1489,24 @@ static const struct drm_connector_funcs radeon_dp_connector_funcs = {
.force = radeon_dvi_force,
};
+static const struct drm_connector_funcs radeon_edp_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = radeon_dp_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .set_property = radeon_lvds_set_property,
+ .destroy = radeon_dp_connector_destroy,
+ .force = radeon_dvi_force,
+};
+
+static const struct drm_connector_funcs radeon_lvds_bridge_connector_funcs = {
+ .dpms = drm_helper_connector_dpms,
+ .detect = radeon_dp_detect,
+ .fill_modes = drm_helper_probe_single_connector_modes,
+ .set_property = radeon_lvds_set_property,
+ .destroy = radeon_dp_connector_destroy,
+ .force = radeon_dvi_force,
+};
+
void
radeon_add_atom_connector(struct drm_device *dev,
uint32_t connector_id,
@@ -1580,8 +1598,6 @@ radeon_add_atom_connector(struct drm_device *dev,
goto failed;
radeon_dig_connector->igp_lane_info = igp_lane_info;
radeon_connector->con_priv = radeon_dig_connector;
- drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
- drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
if (i2c_bus->valid) {
/* add DP i2c bus */
if (connector_type == DRM_MODE_CONNECTOR_eDP)
@@ -1598,6 +1614,10 @@ radeon_add_atom_connector(struct drm_device *dev,
case DRM_MODE_CONNECTOR_VGA:
case DRM_MODE_CONNECTOR_DVIA:
default:
+ drm_connector_init(dev, &radeon_connector->base,
+ &radeon_dp_connector_funcs, connector_type);
+ drm_connector_helper_add(&radeon_connector->base,
+ &radeon_dp_connector_helper_funcs);
connector->interlace_allowed = true;
connector->doublescan_allowed = true;
radeon_connector->dac_load_detect = true;
@@ -1610,6 +1630,10 @@ radeon_add_atom_connector(struct drm_device *dev,
case DRM_MODE_CONNECTOR_HDMIA:
case DRM_MODE_CONNECTOR_HDMIB:
case DRM_MODE_CONNECTOR_DisplayPort:
+ drm_connector_init(dev, &radeon_connector->base,
+ &radeon_dp_connector_funcs, connector_type);
+ drm_connector_helper_add(&radeon_connector->base,
+ &radeon_dp_connector_helper_funcs);
drm_object_attach_property(&radeon_connector->base.base,
rdev->mode_info.underscan_property,
UNDERSCAN_OFF);
@@ -1634,6 +1658,10 @@ radeon_add_atom_connector(struct drm_device *dev,
break;
case DRM_MODE_CONNECTOR_LVDS:
case DRM_MODE_CONNECTOR_eDP:
+ drm_connector_init(dev, &radeon_connector->base,
+ &radeon_lvds_bridge_connector_funcs, connector_type);
+ drm_connector_helper_add(&radeon_connector->base,
+ &radeon_dp_connector_helper_funcs);
drm_object_attach_property(&radeon_connector->base.base,
dev->mode_config.scaling_mode_property,
DRM_MODE_SCALE_FULLSCREEN);
@@ -1797,7 +1825,7 @@ radeon_add_atom_connector(struct drm_device *dev,
goto failed;
radeon_dig_connector->igp_lane_info = igp_lane_info;
radeon_connector->con_priv = radeon_dig_connector;
- drm_connector_init(dev, &radeon_connector->base, &radeon_dp_connector_funcs, connector_type);
+ drm_connector_init(dev, &radeon_connector->base, &radeon_edp_connector_funcs, connector_type);
drm_connector_helper_add(&radeon_connector->base, &radeon_dp_connector_helper_funcs);
if (i2c_bus->valid) {
/* add DP i2c bus */
diff --git a/drivers/gpu/drm/radeon/radeon_cs.c b/drivers/gpu/drm/radeon/radeon_cs.c
index 7e265a5..6337f67 100644
--- a/drivers/gpu/drm/radeon/radeon_cs.c
+++ b/drivers/gpu/drm/radeon/radeon_cs.c
@@ -80,9 +80,11 @@ static int radeon_cs_parser_relocs(struct radeon_cs_parser *p)
p->relocs[i].lobj.bo = p->relocs[i].robj;
p->relocs[i].lobj.written = !!r->write_domain;
- /* the first reloc of an UVD job is the
- msg and that must be in VRAM */
- if (p->ring == R600_RING_TYPE_UVD_INDEX && i == 0) {
+ /* the first reloc of an UVD job is the msg and that must be in
+ VRAM, also but everything into VRAM on AGP cards to avoid
+ image corruptions */
+ if (p->ring == R600_RING_TYPE_UVD_INDEX &&
+ (i == 0 || p->rdev->flags & RADEON_IS_AGP)) {
/* TODO: is this still needed for NI+ ? */
p->relocs[i].lobj.domain =
RADEON_GEM_DOMAIN_VRAM;
diff --git a/drivers/gpu/drm/radeon/radeon_kms.c b/drivers/gpu/drm/radeon/radeon_kms.c
index 4f2d4f4..7e292d8 100644
--- a/drivers/gpu/drm/radeon/radeon_kms.c
+++ b/drivers/gpu/drm/radeon/radeon_kms.c
@@ -414,6 +414,9 @@ int radeon_info_ioctl(struct drm_device *dev, void *data, struct drm_file *filp)
value = rdev->config.si.tile_mode_array;
value_size = sizeof(uint32_t)*32;
break;
+ case RADEON_INFO_SI_CP_DMA_COMPUTE:
+ *value = 1;
+ break;
default:
DRM_DEBUG_KMS("Invalid request %d\n", info->request);
return -EINVAL;
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 233a9b9..b8074a8 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -174,10 +174,13 @@ int rs400_gart_enable(struct radeon_device *rdev)
/* FIXME: according to doc we should set HIDE_MMCFG_BAR=0,
* AGPMODE30=0 & AGP30ENHANCED=0 in NB_CNTL */
if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) {
- WREG32_MC(RS480_MC_MISC_CNTL,
- (RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN));
+ tmp = RREG32_MC(RS480_MC_MISC_CNTL);
+ tmp |= RS480_GART_INDEX_REG_EN | RS690_BLOCK_GFX_D3_EN;
+ WREG32_MC(RS480_MC_MISC_CNTL, tmp);
} else {
- WREG32_MC(RS480_MC_MISC_CNTL, RS480_GART_INDEX_REG_EN);
+ tmp = RREG32_MC(RS480_MC_MISC_CNTL);
+ tmp |= RS480_GART_INDEX_REG_EN;
+ WREG32_MC(RS480_MC_MISC_CNTL, tmp);
}
/* Enable gart */
WREG32_MC(RS480_AGP_ADDRESS_SPACE_SIZE, (RS480_GART_EN | size_reg));
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 1a96a16..f054a3b 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1467,7 +1467,8 @@ static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
struct drm_display_mode *mode,
struct drm_display_mode *other_mode)
{
- u32 tmp;
+ u32 tmp, buffer_alloc, i;
+ u32 pipe_offset = radeon_crtc->crtc_id * 0x20;
/*
* Line Buffer Setup
* There are 3 line buffers, each one shared by 2 display controllers.
@@ -1482,16 +1483,30 @@ static u32 dce6_line_buffer_adjust(struct radeon_device *rdev,
* non-linked crtcs for maximum line buffer allocation.
*/
if (radeon_crtc->base.enabled && mode) {
- if (other_mode)
+ if (other_mode) {
tmp = 0; /* 1/2 */
- else
+ buffer_alloc = 1;
+ } else {
tmp = 2; /* whole */
- } else
+ buffer_alloc = 2;
+ }
+ } else {
tmp = 0;
+ buffer_alloc = 0;
+ }
WREG32(DC_LB_MEMORY_SPLIT + radeon_crtc->crtc_offset,
DC_LB_MEMORY_CONFIG(tmp));
+ WREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset,
+ DMIF_BUFFERS_ALLOCATED(buffer_alloc));
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ if (RREG32(PIPE0_DMIF_BUFFER_CONTROL + pipe_offset) &
+ DMIF_BUFFERS_ALLOCATED_COMPLETED)
+ break;
+ udelay(1);
+ }
+
if (radeon_crtc->base.enabled && mode) {
switch (tmp) {
case 0:
@@ -3796,13 +3811,64 @@ static int si_vm_packet3_ce_check(struct radeon_device *rdev,
return 0;
}
+static int si_vm_packet3_cp_dma_check(u32 *ib, u32 idx)
+{
+ u32 start_reg, reg, i;
+ u32 command = ib[idx + 4];
+ u32 info = ib[idx + 1];
+ u32 idx_value = ib[idx];
+ if (command & PACKET3_CP_DMA_CMD_SAS) {
+ /* src address space is register */
+ if (((info & 0x60000000) >> 29) == 0) {
+ start_reg = idx_value << 2;
+ if (command & PACKET3_CP_DMA_CMD_SAIC) {
+ reg = start_reg;
+ if (!si_vm_reg_valid(reg)) {
+ DRM_ERROR("CP DMA Bad SRC register\n");
+ return -EINVAL;
+ }
+ } else {
+ for (i = 0; i < (command & 0x1fffff); i++) {
+ reg = start_reg + (4 * i);
+ if (!si_vm_reg_valid(reg)) {
+ DRM_ERROR("CP DMA Bad SRC register\n");
+ return -EINVAL;
+ }
+ }
+ }
+ }
+ }
+ if (command & PACKET3_CP_DMA_CMD_DAS) {
+ /* dst address space is register */
+ if (((info & 0x00300000) >> 20) == 0) {
+ start_reg = ib[idx + 2];
+ if (command & PACKET3_CP_DMA_CMD_DAIC) {
+ reg = start_reg;
+ if (!si_vm_reg_valid(reg)) {
+ DRM_ERROR("CP DMA Bad DST register\n");
+ return -EINVAL;
+ }
+ } else {
+ for (i = 0; i < (command & 0x1fffff); i++) {
+ reg = start_reg + (4 * i);
+ if (!si_vm_reg_valid(reg)) {
+ DRM_ERROR("CP DMA Bad DST register\n");
+ return -EINVAL;
+ }
+ }
+ }
+ }
+ }
+ return 0;
+}
+
static int si_vm_packet3_gfx_check(struct radeon_device *rdev,
u32 *ib, struct radeon_cs_packet *pkt)
{
+ int r;
u32 idx = pkt->idx + 1;
u32 idx_value = ib[idx];
u32 start_reg, end_reg, reg, i;
- u32 command, info;
switch (pkt->opcode) {
case PACKET3_NOP:
@@ -3903,50 +3969,9 @@ static int si_vm_packet3_gfx_check(struct radeon_device *rdev,
}
break;
case PACKET3_CP_DMA:
- command = ib[idx + 4];
- info = ib[idx + 1];
- if (command & PACKET3_CP_DMA_CMD_SAS) {
- /* src address space is register */
- if (((info & 0x60000000) >> 29) == 0) {
- start_reg = idx_value << 2;
- if (command & PACKET3_CP_DMA_CMD_SAIC) {
- reg = start_reg;
- if (!si_vm_reg_valid(reg)) {
- DRM_ERROR("CP DMA Bad SRC register\n");
- return -EINVAL;
- }
- } else {
- for (i = 0; i < (command & 0x1fffff); i++) {
- reg = start_reg + (4 * i);
- if (!si_vm_reg_valid(reg)) {
- DRM_ERROR("CP DMA Bad SRC register\n");
- return -EINVAL;
- }
- }
- }
- }
- }
- if (command & PACKET3_CP_DMA_CMD_DAS) {
- /* dst address space is register */
- if (((info & 0x00300000) >> 20) == 0) {
- start_reg = ib[idx + 2];
- if (command & PACKET3_CP_DMA_CMD_DAIC) {
- reg = start_reg;
- if (!si_vm_reg_valid(reg)) {
- DRM_ERROR("CP DMA Bad DST register\n");
- return -EINVAL;
- }
- } else {
- for (i = 0; i < (command & 0x1fffff); i++) {
- reg = start_reg + (4 * i);
- if (!si_vm_reg_valid(reg)) {
- DRM_ERROR("CP DMA Bad DST register\n");
- return -EINVAL;
- }
- }
- }
- }
- }
+ r = si_vm_packet3_cp_dma_check(ib, idx);
+ if (r)
+ return r;
break;
default:
DRM_ERROR("Invalid GFX packet3: 0x%x\n", pkt->opcode);
@@ -3958,6 +3983,7 @@ static int si_vm_packet3_gfx_check(struct radeon_device *rdev,
static int si_vm_packet3_compute_check(struct radeon_device *rdev,
u32 *ib, struct radeon_cs_packet *pkt)
{
+ int r;
u32 idx = pkt->idx + 1;
u32 idx_value = ib[idx];
u32 start_reg, reg, i;
@@ -4030,6 +4056,11 @@ static int si_vm_packet3_compute_check(struct radeon_device *rdev,
return -EINVAL;
}
break;
+ case PACKET3_CP_DMA:
+ r = si_vm_packet3_cp_dma_check(ib, idx);
+ if (r)
+ return r;
+ break;
default:
DRM_ERROR("Invalid Compute packet3: 0x%x\n", pkt->opcode);
return -EINVAL;
diff --git a/drivers/gpu/drm/radeon/sid.h b/drivers/gpu/drm/radeon/sid.h
index 8f2d7d4..8c68e67 100644
--- a/drivers/gpu/drm/radeon/sid.h
+++ b/drivers/gpu/drm/radeon/sid.h
@@ -97,6 +97,10 @@
#define DMIF_ADDR_CALC 0xC00
+#define PIPE0_DMIF_BUFFER_CONTROL 0x0ca0
+# define DMIF_BUFFERS_ALLOCATED(x) ((x) << 0)
+# define DMIF_BUFFERS_ALLOCATED_COMPLETED (1 << 4)
+
#define SRBM_STATUS 0xE50
#define GRBM_RQ_PENDING (1 << 5)
#define VMC_BUSY (1 << 8)
diff --git a/drivers/gpu/drm/ttm/ttm_tt.c b/drivers/gpu/drm/ttm/ttm_tt.c
index 5e93a52..210d503 100644
--- a/drivers/gpu/drm/ttm/ttm_tt.c
+++ b/drivers/gpu/drm/ttm/ttm_tt.c
@@ -170,7 +170,7 @@ void ttm_tt_destroy(struct ttm_tt *ttm)
ttm_tt_unbind(ttm);
}
- if (likely(ttm->pages != NULL)) {
+ if (ttm->state == tt_unbound) {
ttm->bdev->driver->ttm_tt_unpopulate(ttm);
}
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index ed626e0..ca959cf 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -94,7 +94,6 @@ EXPORT_SYMBOL_GPL(hid_register_report);
static struct hid_field *hid_register_field(struct hid_report *report, unsigned usages, unsigned values)
{
struct hid_field *field;
- int i;
if (report->maxfield == HID_MAX_FIELDS) {
hid_err(report->device, "too many fields in report\n");
@@ -113,9 +112,6 @@ static struct hid_field *hid_register_field(struct hid_report *report, unsigned
field->value = (s32 *)(field->usage + usages);
field->report = report;
- for (i = 0; i < usages; i++)
- field->usage[i].usage_index = i;
-
return field;
}
@@ -226,9 +222,9 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
{
struct hid_report *report;
struct hid_field *field;
- int usages;
+ unsigned usages;
unsigned offset;
- int i;
+ unsigned i;
report = hid_register_report(parser->device, report_type, parser->global.report_id);
if (!report) {
@@ -255,7 +251,8 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
if (!parser->local.usage_index) /* Ignore padding fields */
return 0;
- usages = max_t(int, parser->local.usage_index, parser->global.report_count);
+ usages = max_t(unsigned, parser->local.usage_index,
+ parser->global.report_count);
field = hid_register_field(report, usages, parser->global.report_count);
if (!field)
@@ -266,13 +263,14 @@ static int hid_add_field(struct hid_parser *parser, unsigned report_type, unsign
field->application = hid_lookup_collection(parser, HID_COLLECTION_APPLICATION);
for (i = 0; i < usages; i++) {
- int j = i;
+ unsigned j = i;
/* Duplicate the last usage we parsed if we have excess values */
if (i >= parser->local.usage_index)
j = parser->local.usage_index - 1;
field->usage[i].hid = parser->local.usage[j];
field->usage[i].collection_index =
parser->local.collection_index[j];
+ field->usage[i].usage_index = i;
}
field->maxusage = usages;
@@ -759,6 +757,64 @@ int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size)
}
EXPORT_SYMBOL_GPL(hid_parse_report);
+static const char * const hid_report_names[] = {
+ "HID_INPUT_REPORT",
+ "HID_OUTPUT_REPORT",
+ "HID_FEATURE_REPORT",
+};
+/**
+ * hid_validate_values - validate existing device report's value indexes
+ *
+ * @device: hid device
+ * @type: which report type to examine
+ * @id: which report ID to examine (0 for first)
+ * @field_index: which report field to examine
+ * @report_counts: expected number of values
+ *
+ * Validate the number of values in a given field of a given report, after
+ * parsing.
+ */
+struct hid_report *hid_validate_values(struct hid_device *hid,
+ unsigned int type, unsigned int id,
+ unsigned int field_index,
+ unsigned int report_counts)
+{
+ struct hid_report *report;
+
+ if (type > HID_FEATURE_REPORT) {
+ hid_err(hid, "invalid HID report type %u\n", type);
+ return NULL;
+ }
+
+ if (id >= HID_MAX_IDS) {
+ hid_err(hid, "invalid HID report id %u\n", id);
+ return NULL;
+ }
+
+ /*
+ * Explicitly not using hid_get_report() here since it depends on
+ * ->numbered being checked, which may not always be the case when
+ * drivers go to access report values.
+ */
+ report = hid->report_enum[type].report_id_hash[id];
+ if (!report) {
+ hid_err(hid, "missing %s %u\n", hid_report_names[type], id);
+ return NULL;
+ }
+ if (report->maxfield <= field_index) {
+ hid_err(hid, "not enough fields in %s %u\n",
+ hid_report_names[type], id);
+ return NULL;
+ }
+ if (report->field[field_index]->report_count < report_counts) {
+ hid_err(hid, "not enough values in %s %u field %u\n",
+ hid_report_names[type], id, field_index);
+ return NULL;
+ }
+ return report;
+}
+EXPORT_SYMBOL_GPL(hid_validate_values);
+
/**
* hid_open_report - open a driver-specific device report
*
@@ -1237,7 +1293,7 @@ int hid_report_raw_event(struct hid_device *hid, int type, u8 *data, int size,
goto out;
}
- if (hid->claimed != HID_CLAIMED_HIDRAW) {
+ if (hid->claimed != HID_CLAIMED_HIDRAW && report->maxfield) {
for (a = 0; a < report->maxfield; a++)
hid_input_field(hid, report->field[a], cdata, interrupt);
hdrv = hid->driver;
diff --git a/drivers/hid/hid-input.c b/drivers/hid/hid-input.c
index ac5e935..012880a 100644
--- a/drivers/hid/hid-input.c
+++ b/drivers/hid/hid-input.c
@@ -485,6 +485,10 @@ static void hidinput_configure_usage(struct hid_input *hidinput, struct hid_fiel
if (field->flags & HID_MAIN_ITEM_CONSTANT)
goto ignore;
+ /* Ignore if report count is out of bounds. */
+ if (field->report_count < 1)
+ goto ignore;
+
/* only LED usages are supported in output fields */
if (field->report_type == HID_OUTPUT_REPORT &&
(usage->hid & HID_USAGE_PAGE) != HID_UP_LED) {
@@ -1163,7 +1167,11 @@ static void report_features(struct hid_device *hid)
rep_enum = &hid->report_enum[HID_FEATURE_REPORT];
list_for_each_entry(rep, &rep_enum->report_list, list)
- for (i = 0; i < rep->maxfield; i++)
+ for (i = 0; i < rep->maxfield; i++) {
+ /* Ignore if report count is out of bounds. */
+ if (rep->field[i]->report_count < 1)
+ continue;
+
for (j = 0; j < rep->field[i]->maxusage; j++) {
/* Verify if Battery Strength feature is available */
hidinput_setup_battery(hid, HID_FEATURE_REPORT, rep->field[i]);
@@ -1172,6 +1180,7 @@ static void report_features(struct hid_device *hid)
drv->feature_mapping(hid, rep->field[i],
rep->field[i]->usage + j);
}
+ }
}
static struct hid_input *hidinput_allocate(struct hid_device *hid)
diff --git a/drivers/hid/hid-lenovo-tpkbd.c b/drivers/hid/hid-lenovo-tpkbd.c
index 07837f5..31cf29a 100644
--- a/drivers/hid/hid-lenovo-tpkbd.c
+++ b/drivers/hid/hid-lenovo-tpkbd.c
@@ -339,7 +339,15 @@ static int tpkbd_probe_tp(struct hid_device *hdev)
struct tpkbd_data_pointer *data_pointer;
size_t name_sz = strlen(dev_name(dev)) + 16;
char *name_mute, *name_micmute;
- int ret;
+ int i, ret;
+
+ /* Validate required reports. */
+ for (i = 0; i < 4; i++) {
+ if (!hid_validate_values(hdev, HID_FEATURE_REPORT, 4, i, 1))
+ return -ENODEV;
+ }
+ if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 3, 0, 2))
+ return -ENODEV;
if (sysfs_create_group(&hdev->dev.kobj,
&tpkbd_attr_group_pointer)) {
@@ -406,22 +414,27 @@ static int tpkbd_probe(struct hid_device *hdev,
ret = hid_parse(hdev);
if (ret) {
hid_err(hdev, "hid_parse failed\n");
- goto err_free;
+ goto err;
}
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hid_hw_start failed\n");
- goto err_free;
+ goto err;
}
uhdev = (struct usbhid_device *) hdev->driver_data;
- if (uhdev->ifnum == 1)
- return tpkbd_probe_tp(hdev);
+ if (uhdev->ifnum == 1) {
+ ret = tpkbd_probe_tp(hdev);
+ if (ret)
+ goto err_hid;
+ }
return 0;
-err_free:
+err_hid:
+ hid_hw_stop(hdev);
+err:
return ret;
}
diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c
index b3cd150..1a42eaa 100644
--- a/drivers/hid/hid-lg2ff.c
+++ b/drivers/hid/hid-lg2ff.c
@@ -64,26 +64,13 @@ int lg2ff_init(struct hid_device *hid)
struct hid_report *report;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
- struct list_head *report_list =
- &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
int error;
- if (list_empty(report_list)) {
- hid_err(hid, "no output report found\n");
+ /* Check that the report looks ok */
+ report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7);
+ if (!report)
return -ENODEV;
- }
-
- report = list_entry(report_list->next, struct hid_report, list);
-
- if (report->maxfield < 1) {
- hid_err(hid, "output report is empty\n");
- return -ENODEV;
- }
- if (report->field[0]->report_count < 7) {
- hid_err(hid, "not enough values in the field\n");
- return -ENODEV;
- }
lg2ff = kmalloc(sizeof(struct lg2ff_device), GFP_KERNEL);
if (!lg2ff)
diff --git a/drivers/hid/hid-lg3ff.c b/drivers/hid/hid-lg3ff.c
index e52f181..8c2da18 100644
--- a/drivers/hid/hid-lg3ff.c
+++ b/drivers/hid/hid-lg3ff.c
@@ -66,10 +66,11 @@ static int hid_lg3ff_play(struct input_dev *dev, void *data,
int x, y;
/*
- * Maxusage should always be 63 (maximum fields)
- * likely a better way to ensure this data is clean
+ * Available values in the field should always be 63, but we only use up to
+ * 35. Instead, clear the entire area, however big it is.
*/
- memset(report->field[0]->value, 0, sizeof(__s32)*report->field[0]->maxusage);
+ memset(report->field[0]->value, 0,
+ sizeof(__s32) * report->field[0]->report_count);
switch (effect->type) {
case FF_CONSTANT:
@@ -129,32 +130,14 @@ static const signed short ff3_joystick_ac[] = {
int lg3ff_init(struct hid_device *hid)
{
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
- struct hid_report *report;
- struct hid_field *field;
const signed short *ff_bits = ff3_joystick_ac;
int error;
int i;
- /* Find the report to use */
- if (list_empty(report_list)) {
- hid_err(hid, "No output report found\n");
- return -1;
- }
-
/* Check that the report looks ok */
- report = list_entry(report_list->next, struct hid_report, list);
- if (!report) {
- hid_err(hid, "NULL output report\n");
- return -1;
- }
-
- field = report->field[0];
- if (!field) {
- hid_err(hid, "NULL field\n");
- return -1;
- }
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 35))
+ return -ENODEV;
/* Assume single fixed device G940 */
for (i = 0; ff_bits[i] >= 0; i++)
diff --git a/drivers/hid/hid-lg4ff.c b/drivers/hid/hid-lg4ff.c
index 0ddae2a..8782fe1 100644
--- a/drivers/hid/hid-lg4ff.c
+++ b/drivers/hid/hid-lg4ff.c
@@ -484,34 +484,16 @@ static enum led_brightness lg4ff_led_get_brightness(struct led_classdev *led_cde
int lg4ff_init(struct hid_device *hid)
{
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
- struct hid_report *report;
- struct hid_field *field;
struct lg4ff_device_entry *entry;
struct lg_drv_data *drv_data;
struct usb_device_descriptor *udesc;
int error, i, j;
__u16 bcdDevice, rev_maj, rev_min;
- /* Find the report to use */
- if (list_empty(report_list)) {
- hid_err(hid, "No output report found\n");
- return -1;
- }
-
/* Check that the report looks ok */
- report = list_entry(report_list->next, struct hid_report, list);
- if (!report) {
- hid_err(hid, "NULL output report\n");
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
return -1;
- }
-
- field = report->field[0];
- if (!field) {
- hid_err(hid, "NULL field\n");
- return -1;
- }
/* Check what wheel has been connected */
for (i = 0; i < ARRAY_SIZE(lg4ff_devices); i++) {
diff --git a/drivers/hid/hid-lgff.c b/drivers/hid/hid-lgff.c
index d7ea8c8..e1394af 100644
--- a/drivers/hid/hid-lgff.c
+++ b/drivers/hid/hid-lgff.c
@@ -128,27 +128,14 @@ static void hid_lgff_set_autocenter(struct input_dev *dev, u16 magnitude)
int lgff_init(struct hid_device* hid)
{
struct hid_input *hidinput = list_entry(hid->inputs.next, struct hid_input, list);
- struct list_head *report_list = &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
- struct hid_report *report;
- struct hid_field *field;
const signed short *ff_bits = ff_joystick;
int error;
int i;
- /* Find the report to use */
- if (list_empty(report_list)) {
- hid_err(hid, "No output report found\n");
- return -1;
- }
-
/* Check that the report looks ok */
- report = list_entry(report_list->next, struct hid_report, list);
- field = report->field[0];
- if (!field) {
- hid_err(hid, "NULL field\n");
- return -1;
- }
+ if (!hid_validate_values(hid, HID_OUTPUT_REPORT, 0, 0, 7))
+ return -ENODEV;
for (i = 0; i < ARRAY_SIZE(devices); i++) {
if (dev->id.vendor == devices[i].idVendor &&
diff --git a/drivers/hid/hid-logitech-dj.c b/drivers/hid/hid-logitech-dj.c
index 5207591a..0522b80 100644
--- a/drivers/hid/hid-logitech-dj.c
+++ b/drivers/hid/hid-logitech-dj.c
@@ -421,7 +421,7 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
struct hid_report *report;
struct hid_report_enum *output_report_enum;
u8 *data = (u8 *)(&dj_report->device_index);
- int i;
+ unsigned int i;
output_report_enum = &hdev->report_enum[HID_OUTPUT_REPORT];
report = output_report_enum->report_id_hash[REPORT_ID_DJ_SHORT];
@@ -431,7 +431,7 @@ static int logi_dj_recv_send_report(struct dj_receiver_dev *djrcv_dev,
return -ENODEV;
}
- for (i = 0; i < report->field[0]->report_count; i++)
+ for (i = 0; i < DJREPORT_SHORT_LENGTH - 1; i++)
report->field[0]->value[i] = data[i];
hid_hw_request(hdev, report, HID_REQ_SET_REPORT);
@@ -738,6 +738,12 @@ static int logi_dj_probe(struct hid_device *hdev,
goto hid_parse_fail;
}
+ if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, REPORT_ID_DJ_SHORT,
+ 0, DJREPORT_SHORT_LENGTH - 1)) {
+ retval = -ENODEV;
+ goto hid_parse_fail;
+ }
+
/* Starts the usb device and connects to upper interfaces hiddev and
* hidraw */
retval = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
diff --git a/drivers/hid/hid-multitouch.c b/drivers/hid/hid-multitouch.c
index d39a5ce..b6701ce 100644
--- a/drivers/hid/hid-multitouch.c
+++ b/drivers/hid/hid-multitouch.c
@@ -101,9 +101,9 @@ struct mt_device {
unsigned last_slot_field; /* the last field of a slot */
unsigned mt_report_id; /* the report ID of the multitouch device */
unsigned pen_report_id; /* the report ID of the pen device */
- __s8 inputmode; /* InputMode HID feature, -1 if non-existent */
- __s8 inputmode_index; /* InputMode HID feature index in the report */
- __s8 maxcontact_report_id; /* Maximum Contact Number HID feature,
+ __s16 inputmode; /* InputMode HID feature, -1 if non-existent */
+ __s16 inputmode_index; /* InputMode HID feature index in the report */
+ __s16 maxcontact_report_id; /* Maximum Contact Number HID feature,
-1 if non-existent */
__u8 num_received; /* how many contacts we received */
__u8 num_expected; /* expected last contact index */
@@ -317,20 +317,18 @@ static void mt_feature_mapping(struct hid_device *hdev,
struct hid_field *field, struct hid_usage *usage)
{
struct mt_device *td = hid_get_drvdata(hdev);
- int i;
switch (usage->hid) {
case HID_DG_INPUTMODE:
- td->inputmode = field->report->id;
- td->inputmode_index = 0; /* has to be updated below */
-
- for (i=0; i < field->maxusage; i++) {
- if (field->usage[i].hid == usage->hid) {
- td->inputmode_index = i;
- break;
- }
+ /* Ignore if value index is out of bounds. */
+ if (usage->usage_index >= field->report_count) {
+ dev_err(&hdev->dev, "HID_DG_INPUTMODE out of range\n");
+ break;
}
+ td->inputmode = field->report->id;
+ td->inputmode_index = usage->usage_index;
+
break;
case HID_DG_CONTACTMAX:
td->maxcontact_report_id = field->report->id;
@@ -536,6 +534,10 @@ static int mt_touch_input_mapping(struct hid_device *hdev, struct hid_input *hi,
mt_store_field(usage, td, hi);
return 1;
case HID_DG_CONTACTCOUNT:
+ /* Ignore if indexes are out of bounds. */
+ if (field->index >= field->report->maxfield ||
+ usage->usage_index >= field->report_count)
+ return 1;
td->cc_index = field->index;
td->cc_value_index = usage->usage_index;
return 1;
diff --git a/drivers/hid/hid-steelseries.c b/drivers/hid/hid-steelseries.c
index d164911..29f328f 100644
--- a/drivers/hid/hid-steelseries.c
+++ b/drivers/hid/hid-steelseries.c
@@ -249,6 +249,11 @@ static int steelseries_srws1_probe(struct hid_device *hdev,
goto err_free;
}
+ if (!hid_validate_values(hdev, HID_OUTPUT_REPORT, 0, 0, 16)) {
+ ret = -ENODEV;
+ goto err_free;
+ }
+
ret = hid_hw_start(hdev, HID_CONNECT_DEFAULT);
if (ret) {
hid_err(hdev, "hw start failed\n");
diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c
index 6ec28a3..a29756c 100644
--- a/drivers/hid/hid-zpff.c
+++ b/drivers/hid/hid-zpff.c
@@ -68,21 +68,13 @@ static int zpff_init(struct hid_device *hid)
struct hid_report *report;
struct hid_input *hidinput = list_entry(hid->inputs.next,
struct hid_input, list);
- struct list_head *report_list =
- &hid->report_enum[HID_OUTPUT_REPORT].report_list;
struct input_dev *dev = hidinput->input;
- int error;
+ int i, error;
- if (list_empty(report_list)) {
- hid_err(hid, "no output report found\n");
- return -ENODEV;
- }
-
- report = list_entry(report_list->next, struct hid_report, list);
-
- if (report->maxfield < 4) {
- hid_err(hid, "not enough fields in report\n");
- return -ENODEV;
+ for (i = 0; i < 4; i++) {
+ report = hid_validate_values(hid, HID_OUTPUT_REPORT, 0, i, 1);
+ if (!report)
+ return -ENODEV;
}
zpff = kzalloc(sizeof(struct zpff_device), GFP_KERNEL);
diff --git a/drivers/media/pci/Kconfig b/drivers/media/pci/Kconfig
index d4e2ed3..53196f1 100644
--- a/drivers/media/pci/Kconfig
+++ b/drivers/media/pci/Kconfig
@@ -1,6 +1,7 @@
+if PCI && MEDIA_SUPPORT
+
menuconfig MEDIA_PCI_SUPPORT
bool "Media PCI Adapters"
- depends on PCI && MEDIA_SUPPORT
help
Enable media drivers for PCI/PCIe bus.
If you have such devices, say Y.
@@ -45,3 +46,4 @@ source "drivers/media/pci/ddbridge/Kconfig"
endif
endif #MEDIA_PCI_SUPPORT
+endif #PCI
diff --git a/drivers/media/usb/Kconfig b/drivers/media/usb/Kconfig
index 0a7d520..7cac453 100644
--- a/drivers/media/usb/Kconfig
+++ b/drivers/media/usb/Kconfig
@@ -1,6 +1,7 @@
+if USB && MEDIA_SUPPORT
+
menuconfig MEDIA_USB_SUPPORT
bool "Media USB Adapters"
- depends on USB && MEDIA_SUPPORT
help
Enable media drivers for USB bus.
If you have such devices, say Y.
@@ -52,3 +53,4 @@ source "drivers/media/usb/em28xx/Kconfig"
endif
endif #MEDIA_USB_SUPPORT
+endif #USB
diff --git a/drivers/net/ethernet/broadcom/bgmac.c b/drivers/net/ethernet/broadcom/bgmac.c
index eec0af4..1c6bc96 100644
--- a/drivers/net/ethernet/broadcom/bgmac.c
+++ b/drivers/net/ethernet/broadcom/bgmac.c
@@ -908,7 +908,7 @@ static void bgmac_chip_reset(struct bgmac *bgmac)
struct bcma_drv_cc *cc = &bgmac->core->bus->drv_cc;
u8 et_swtype = 0;
u8 sw_type = BGMAC_CHIPCTL_1_SW_TYPE_EPHY |
- BGMAC_CHIPCTL_1_IF_TYPE_RMII;
+ BGMAC_CHIPCTL_1_IF_TYPE_MII;
char buf[2];
if (bcm47xx_nvram_getenv("et_swtype", buf, 1) > 0) {
diff --git a/drivers/net/ethernet/broadcom/bgmac.h b/drivers/net/ethernet/broadcom/bgmac.h
index 98d4b5f..12a35cf 100644
--- a/drivers/net/ethernet/broadcom/bgmac.h
+++ b/drivers/net/ethernet/broadcom/bgmac.h
@@ -333,7 +333,7 @@
#define BGMAC_CHIPCTL_1_IF_TYPE_MASK 0x00000030
#define BGMAC_CHIPCTL_1_IF_TYPE_RMII 0x00000000
-#define BGMAC_CHIPCTL_1_IF_TYPE_MI 0x00000010
+#define BGMAC_CHIPCTL_1_IF_TYPE_MII 0x00000010
#define BGMAC_CHIPCTL_1_IF_TYPE_RGMII 0x00000020
#define BGMAC_CHIPCTL_1_SW_TYPE_MASK 0x000000C0
#define BGMAC_CHIPCTL_1_SW_TYPE_EPHY 0x00000000
diff --git a/drivers/net/usb/cdc_ether.c b/drivers/net/usb/cdc_ether.c
index 04ee044..b1897c7 100644
--- a/drivers/net/usb/cdc_ether.c
+++ b/drivers/net/usb/cdc_ether.c
@@ -709,6 +709,11 @@ static const struct usb_device_id products [] = {
.bInterfaceProtocol = USB_CDC_PROTO_NONE,
.driver_info = (unsigned long)&wwan_info,
}, {
+ /* Telit modules */
+ USB_VENDOR_AND_INTERFACE_INFO(0x1bc7, USB_CLASS_COMM,
+ USB_CDC_SUBCLASS_ETHERNET, USB_CDC_PROTO_NONE),
+ .driver_info = (kernel_ulong_t) &wwan_info,
+}, {
USB_INTERFACE_INFO(USB_CLASS_COMM, USB_CDC_SUBCLASS_ETHERNET,
USB_CDC_PROTO_NONE),
.driver_info = (unsigned long) &cdc_info,
diff --git a/drivers/net/wireless/rt2x00/rt2800lib.c b/drivers/net/wireless/rt2x00/rt2800lib.c
index 7e66a90..f281971 100644
--- a/drivers/net/wireless/rt2x00/rt2800lib.c
+++ b/drivers/net/wireless/rt2x00/rt2800lib.c
@@ -2767,6 +2767,13 @@ static int rt2800_get_gain_calibration_delta(struct rt2x00_dev *rt2x00dev)
int i;
/*
+ * First check if temperature compensation is supported.
+ */
+ rt2x00_eeprom_read(rt2x00dev, EEPROM_NIC_CONF1, &eeprom);
+ if (!rt2x00_get_field16(eeprom, EEPROM_NIC_CONF1_EXTERNAL_TX_ALC))
+ return 0;
+
+ /*
* Read TSSI boundaries for temperature compensation from
* the EEPROM.
*
@@ -4041,10 +4048,6 @@ static int rt2800_init_bbp(struct rt2x00_dev *rt2x00dev)
u8 reg_id;
u8 value;
- if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev) ||
- rt2800_wait_bbp_ready(rt2x00dev)))
- return -EACCES;
-
if (rt2x00_rt(rt2x00dev, RT5592)) {
rt2800_init_bbp_5592(rt2x00dev);
return 0;
@@ -5185,20 +5188,23 @@ int rt2800_enable_radio(struct rt2x00_dev *rt2x00dev)
rt2800_init_registers(rt2x00dev)))
return -EIO;
+ if (unlikely(rt2800_wait_bbp_rf_ready(rt2x00dev)))
+ return -EIO;
+
/*
* Send signal to firmware during boot time.
*/
rt2800_register_write(rt2x00dev, H2M_BBP_AGENT, 0);
rt2800_register_write(rt2x00dev, H2M_MAILBOX_CSR, 0);
- if (rt2x00_is_usb(rt2x00dev)) {
+ if (rt2x00_is_usb(rt2x00dev))
rt2800_register_write(rt2x00dev, H2M_INT_SRC, 0);
- rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
- }
+ rt2800_mcu_request(rt2x00dev, MCU_BOOT_SIGNAL, 0, 0, 0);
msleep(1);
- if (unlikely(rt2800_init_bbp(rt2x00dev)))
+ if (unlikely(rt2800_wait_bbp_ready(rt2x00dev)))
return -EIO;
+ rt2800_init_bbp(rt2x00dev);
rt2800_init_rfcsr(rt2x00dev);
if (rt2x00_is_usb(rt2x00dev) &&
diff --git a/drivers/pci/pci-acpi.c b/drivers/pci/pci-acpi.c
index 336b3f9..0eab3a3 100644
--- a/drivers/pci/pci-acpi.c
+++ b/drivers/pci/pci-acpi.c
@@ -47,6 +47,9 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
if (event != ACPI_NOTIFY_DEVICE_WAKE || !pci_dev)
return;
+ if (pci_dev->pme_poll)
+ pci_dev->pme_poll = false;
+
if (pci_dev->current_state == PCI_D3cold) {
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
@@ -57,9 +60,6 @@ static void pci_acpi_wake_dev(acpi_handle handle, u32 event, void *context)
if (pci_dev->pme_support)
pci_check_pme_status(pci_dev);
- if (pci_dev->pme_poll)
- pci_dev->pme_poll = false;
-
pci_wakeup_event(pci_dev);
pm_runtime_resume(&pci_dev->dev);
diff --git a/drivers/usb/gadget/dummy_hcd.c b/drivers/usb/gadget/dummy_hcd.c
index c588e8e..ac0e79e 100644
--- a/drivers/usb/gadget/dummy_hcd.c
+++ b/drivers/usb/gadget/dummy_hcd.c
@@ -923,8 +923,9 @@ static int dummy_udc_stop(struct usb_gadget *g,
struct dummy_hcd *dum_hcd = gadget_to_dummy_hcd(g);
struct dummy *dum = dum_hcd->dum;
- dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
- driver->driver.name);
+ if (driver)
+ dev_dbg(udc_dev(dum), "unregister gadget driver '%s'\n",
+ driver->driver.name);
dum->driver = NULL;
@@ -1000,8 +1001,8 @@ static int dummy_udc_remove(struct platform_device *pdev)
{
struct dummy *dum = platform_get_drvdata(pdev);
- usb_del_gadget_udc(&dum->gadget);
device_remove_file(&dum->gadget.dev, &dev_attr_function);
+ usb_del_gadget_udc(&dum->gadget);
return 0;
}
diff --git a/fs/bio-integrity.c b/fs/bio-integrity.c
index 8fb4291..45e944f 100644
--- a/fs/bio-integrity.c
+++ b/fs/bio-integrity.c
@@ -734,7 +734,7 @@ void bioset_integrity_free(struct bio_set *bs)
mempool_destroy(bs->bio_integrity_pool);
if (bs->bvec_integrity_pool)
- mempool_destroy(bs->bio_integrity_pool);
+ mempool_destroy(bs->bvec_integrity_pool);
}
EXPORT_SYMBOL(bioset_integrity_free);
diff --git a/fs/cifs/dir.c b/fs/cifs/dir.c
index 5699b50..0c2425b 100644
--- a/fs/cifs/dir.c
+++ b/fs/cifs/dir.c
@@ -491,6 +491,7 @@ cifs_atomic_open(struct inode *inode, struct dentry *direntry,
if (server->ops->close)
server->ops->close(xid, tcon, &fid);
cifs_del_pending_open(&open);
+ fput(file);
rc = -ENOMEM;
}
diff --git a/fs/udf/super.c b/fs/udf/super.c
index 9ac4057..839a2ba 100644
--- a/fs/udf/super.c
+++ b/fs/udf/super.c
@@ -630,6 +630,12 @@ static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
struct udf_sb_info *sbi = UDF_SB(sb);
int error = 0;
+ if (sbi->s_lvid_bh) {
+ int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
+ if (write_rev > UDF_MAX_WRITE_VERSION && !(*flags & MS_RDONLY))
+ return -EACCES;
+ }
+
uopt.flags = sbi->s_flags;
uopt.uid = sbi->s_uid;
uopt.gid = sbi->s_gid;
@@ -649,12 +655,6 @@ static int udf_remount_fs(struct super_block *sb, int *flags, char *options)
sbi->s_dmode = uopt.dmode;
write_unlock(&sbi->s_cred_lock);
- if (sbi->s_lvid_bh) {
- int write_rev = le16_to_cpu(udf_sb_lvidiu(sbi)->minUDFWriteRev);
- if (write_rev > UDF_MAX_WRITE_VERSION)
- *flags |= MS_RDONLY;
- }
-
if ((*flags & MS_RDONLY) == (sb->s_flags & MS_RDONLY))
goto out_unlock;
@@ -843,27 +843,38 @@ static int udf_find_fileset(struct super_block *sb,
return 1;
}
+/*
+ * Load primary Volume Descriptor Sequence
+ *
+ * Return <0 on error, 0 on success. -EAGAIN is special meaning next sequence
+ * should be tried.
+ */
static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
{
struct primaryVolDesc *pvoldesc;
struct ustr *instr, *outstr;
struct buffer_head *bh;
uint16_t ident;
- int ret = 1;
+ int ret = -ENOMEM;
instr = kmalloc(sizeof(struct ustr), GFP_NOFS);
if (!instr)
- return 1;
+ return -ENOMEM;
outstr = kmalloc(sizeof(struct ustr), GFP_NOFS);
if (!outstr)
goto out1;
bh = udf_read_tagged(sb, block, block, &ident);
- if (!bh)
+ if (!bh) {
+ ret = -EAGAIN;
goto out2;
+ }
- BUG_ON(ident != TAG_IDENT_PVD);
+ if (ident != TAG_IDENT_PVD) {
+ ret = -EIO;
+ goto out_bh;
+ }
pvoldesc = (struct primaryVolDesc *)bh->b_data;
@@ -889,8 +900,9 @@ static int udf_load_pvoldesc(struct super_block *sb, sector_t block)
if (udf_CS0toUTF8(outstr, instr))
udf_debug("volSetIdent[] = '%s'\n", outstr->u_name);
- brelse(bh);
ret = 0;
+out_bh:
+ brelse(bh);
out2:
kfree(outstr);
out1:
@@ -947,7 +959,7 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
if (mdata->s_mirror_fe == NULL) {
udf_err(sb, "Both metadata and mirror metadata inode efe can not found\n");
- goto error_exit;
+ return -EIO;
}
}
@@ -964,23 +976,18 @@ static int udf_load_metadata_files(struct super_block *sb, int partition)
addr.logicalBlockNum, addr.partitionReferenceNum);
mdata->s_bitmap_fe = udf_iget(sb, &addr);
-
if (mdata->s_bitmap_fe == NULL) {
if (sb->s_flags & MS_RDONLY)
udf_warn(sb, "bitmap inode efe not found but it's ok since the disc is mounted read-only\n");
else {
udf_err(sb, "bitmap inode efe not found and attempted read-write mount\n");
- goto error_exit;
+ return -EIO;
}
}
}
udf_debug("udf_load_metadata_files Ok\n");
-
return 0;
-
-error_exit:
- return 1;
}
static void udf_load_fileset(struct super_block *sb, struct buffer_head *bh,
@@ -1069,7 +1076,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
if (!map->s_uspace.s_table) {
udf_debug("cannot load unallocSpaceTable (part %d)\n",
p_index);
- return 1;
+ return -EIO;
}
map->s_partition_flags |= UDF_PART_FLAG_UNALLOC_TABLE;
udf_debug("unallocSpaceTable (part %d) @ %ld\n",
@@ -1079,7 +1086,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
if (phd->unallocSpaceBitmap.extLength) {
struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
if (!bitmap)
- return 1;
+ return -ENOMEM;
map->s_uspace.s_bitmap = bitmap;
bitmap->s_extPosition = le32_to_cpu(
phd->unallocSpaceBitmap.extPosition);
@@ -1102,7 +1109,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
if (!map->s_fspace.s_table) {
udf_debug("cannot load freedSpaceTable (part %d)\n",
p_index);
- return 1;
+ return -EIO;
}
map->s_partition_flags |= UDF_PART_FLAG_FREED_TABLE;
@@ -1113,7 +1120,7 @@ static int udf_fill_partdesc_info(struct super_block *sb,
if (phd->freedSpaceBitmap.extLength) {
struct udf_bitmap *bitmap = udf_sb_alloc_bitmap(sb, p_index);
if (!bitmap)
- return 1;
+ return -ENOMEM;
map->s_fspace.s_bitmap = bitmap;
bitmap->s_extPosition = le32_to_cpu(
phd->freedSpaceBitmap.extPosition);
@@ -1165,7 +1172,7 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
udf_find_vat_block(sb, p_index, type1_index, blocks - 1);
}
if (!sbi->s_vat_inode)
- return 1;
+ return -EIO;
if (map->s_partition_type == UDF_VIRTUAL_MAP15) {
map->s_type_specific.s_virtual.s_start_offset = 0;
@@ -1177,7 +1184,7 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
pos = udf_block_map(sbi->s_vat_inode, 0);
bh = sb_bread(sb, pos);
if (!bh)
- return 1;
+ return -EIO;
vat20 = (struct virtualAllocationTable20 *)bh->b_data;
} else {
vat20 = (struct virtualAllocationTable20 *)
@@ -1195,6 +1202,12 @@ static int udf_load_vat(struct super_block *sb, int p_index, int type1_index)
return 0;
}
+/*
+ * Load partition descriptor block
+ *
+ * Returns <0 on error, 0 on success, -EAGAIN is special - try next descriptor
+ * sequence.
+ */
static int udf_load_partdesc(struct super_block *sb, sector_t block)
{
struct buffer_head *bh;
@@ -1204,13 +1217,15 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
int i, type1_idx;
uint16_t partitionNumber;
uint16_t ident;
- int ret = 0;
+ int ret;
bh = udf_read_tagged(sb, block, block, &ident);
if (!bh)
- return 1;
- if (ident != TAG_IDENT_PD)
+ return -EAGAIN;
+ if (ident != TAG_IDENT_PD) {
+ ret = 0;
goto out_bh;
+ }
p = (struct partitionDesc *)bh->b_data;
partitionNumber = le16_to_cpu(p->partitionNumber);
@@ -1229,10 +1244,13 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
if (i >= sbi->s_partitions) {
udf_debug("Partition (%d) not found in partition map\n",
partitionNumber);
+ ret = 0;
goto out_bh;
}
ret = udf_fill_partdesc_info(sb, p, i);
+ if (ret < 0)
+ goto out_bh;
/*
* Now rescan for VIRTUAL or METADATA partitions when SPARABLE and
@@ -1249,32 +1267,37 @@ static int udf_load_partdesc(struct super_block *sb, sector_t block)
break;
}
- if (i >= sbi->s_partitions)
+ if (i >= sbi->s_partitions) {
+ ret = 0;
goto out_bh;
+ }
ret = udf_fill_partdesc_info(sb, p, i);
- if (ret)
+ if (ret < 0)
goto out_bh;
if (map->s_partition_type == UDF_METADATA_MAP25) {
ret = udf_load_metadata_files(sb, i);
- if (ret) {
+ if (ret < 0) {
udf_err(sb, "error loading MetaData partition map %d\n",
i);
goto out_bh;
}
} else {
- ret = udf_load_vat(sb, i, type1_idx);
- if (ret)
- goto out_bh;
/*
- * Mark filesystem read-only if we have a partition with
- * virtual map since we don't handle writing to it (we
- * overwrite blocks instead of relocating them).
+ * If we have a partition with virtual map, we don't handle
+ * writing to it (we overwrite blocks instead of relocating
+ * them).
*/
- sb->s_flags |= MS_RDONLY;
- pr_notice("Filesystem marked read-only because writing to pseudooverwrite partition is not implemented\n");
+ if (!(sb->s_flags & MS_RDONLY)) {
+ ret = -EACCES;
+ goto out_bh;
+ }
+ ret = udf_load_vat(sb, i, type1_idx);
+ if (ret < 0)
+ goto out_bh;
}
+ ret = 0;
out_bh:
/* In case loading failed, we handle cleanup in udf_fill_super */
brelse(bh);
@@ -1340,11 +1363,11 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
uint16_t ident;
struct buffer_head *bh;
unsigned int table_len;
- int ret = 0;
+ int ret;
bh = udf_read_tagged(sb, block, block, &ident);
if (!bh)
- return 1;
+ return -EAGAIN;
BUG_ON(ident != TAG_IDENT_LVD);
lvd = (struct logicalVolDesc *)bh->b_data;
table_len = le32_to_cpu(lvd->mapTableLength);
@@ -1352,7 +1375,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
udf_err(sb, "error loading logical volume descriptor: "
"Partition table too long (%u > %lu)\n", table_len,
sb->s_blocksize - sizeof(*lvd));
- ret = 1;
+ ret = -EIO;
goto out_bh;
}
@@ -1396,11 +1419,10 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
} else if (!strncmp(upm2->partIdent.ident,
UDF_ID_SPARABLE,
strlen(UDF_ID_SPARABLE))) {
- if (udf_load_sparable_map(sb, map,
- (struct sparablePartitionMap *)gpm) < 0) {
- ret = 1;
+ ret = udf_load_sparable_map(sb, map,
+ (struct sparablePartitionMap *)gpm);
+ if (ret < 0)
goto out_bh;
- }
} else if (!strncmp(upm2->partIdent.ident,
UDF_ID_METADATA,
strlen(UDF_ID_METADATA))) {
@@ -1465,7 +1487,7 @@ static int udf_load_logicalvol(struct super_block *sb, sector_t block,
}
if (lvd->integritySeqExt.extLength)
udf_load_logicalvolint(sb, leea_to_cpu(lvd->integritySeqExt));
-
+ ret = 0;
out_bh:
brelse(bh);
return ret;
@@ -1503,22 +1525,18 @@ static void udf_load_logicalvolint(struct super_block *sb, struct kernel_extent_
}
/*
- * udf_process_sequence
- *
- * PURPOSE
- * Process a main/reserve volume descriptor sequence.
- *
- * PRE-CONDITIONS
- * sb Pointer to _locked_ superblock.
- * block First block of first extent of the sequence.
- * lastblock Lastblock of first extent of the sequence.
+ * Process a main/reserve volume descriptor sequence.
+ * @block First block of first extent of the sequence.
+ * @lastblock Lastblock of first extent of the sequence.
+ * @fileset There we store extent containing root fileset
*
- * HISTORY
- * July 1, 1997 - Andrew E. Mileski
- * Written, tested, and released.
+ * Returns <0 on error, 0 on success. -EAGAIN is special - try next descriptor
+ * sequence
*/
-static noinline int udf_process_sequence(struct super_block *sb, long block,
- long lastblock, struct kernel_lb_addr *fileset)
+static noinline int udf_process_sequence(
+ struct super_block *sb,
+ sector_t block, sector_t lastblock,
+ struct kernel_lb_addr *fileset)
{
struct buffer_head *bh = NULL;
struct udf_vds_record vds[VDS_POS_LENGTH];
@@ -1529,6 +1547,7 @@ static noinline int udf_process_sequence(struct super_block *sb, long block,
uint32_t vdsn;
uint16_t ident;
long next_s = 0, next_e = 0;
+ int ret;
memset(vds, 0, sizeof(struct udf_vds_record) * VDS_POS_LENGTH);
@@ -1543,7 +1562,7 @@ static noinline int udf_process_sequence(struct super_block *sb, long block,
udf_err(sb,
"Block %llu of volume descriptor sequence is corrupted or we could not read it\n",
(unsigned long long)block);
- return 1;
+ return -EAGAIN;
}
/* Process each descriptor (ISO 13346 3/8.3-8.4) */
@@ -1616,14 +1635,19 @@ static noinline int udf_process_sequence(struct super_block *sb, long block,
*/
if (!vds[VDS_POS_PRIMARY_VOL_DESC].block) {
udf_err(sb, "Primary Volume Descriptor not found!\n");
- return 1;
+ return -EAGAIN;
+ }
+ ret = udf_load_pvoldesc(sb, vds[VDS_POS_PRIMARY_VOL_DESC].block);
+ if (ret < 0)
+ return ret;
+
+ if (vds[VDS_POS_LOGICAL_VOL_DESC].block) {
+ ret = udf_load_logicalvol(sb,
+ vds[VDS_POS_LOGICAL_VOL_DESC].block,
+ fileset);
+ if (ret < 0)
+ return ret;
}
- if (udf_load_pvoldesc(sb, vds[VDS_POS_PRIMARY_VOL_DESC].block))
- return 1;
-
- if (vds[VDS_POS_LOGICAL_VOL_DESC].block && udf_load_logicalvol(sb,
- vds[VDS_POS_LOGICAL_VOL_DESC].block, fileset))
- return 1;
if (vds[VDS_POS_PARTITION_DESC].block) {
/*
@@ -1632,19 +1656,27 @@ static noinline int udf_process_sequence(struct super_block *sb, long block,
*/
for (block = vds[VDS_POS_PARTITION_DESC].block;
block < vds[VDS_POS_TERMINATING_DESC].block;
- block++)
- if (udf_load_partdesc(sb, block))
- return 1;
+ block++) {
+ ret = udf_load_partdesc(sb, block);
+ if (ret < 0)
+ return ret;
+ }
}
return 0;
}
+/*
+ * Load Volume Descriptor Sequence described by anchor in bh
+ *
+ * Returns <0 on error, 0 on success
+ */
static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh,
struct kernel_lb_addr *fileset)
{
struct anchorVolDescPtr *anchor;
- long main_s, main_e, reserve_s, reserve_e;
+ sector_t main_s, main_e, reserve_s, reserve_e;
+ int ret;
anchor = (struct anchorVolDescPtr *)bh->b_data;
@@ -1662,18 +1694,26 @@ static int udf_load_sequence(struct super_block *sb, struct buffer_head *bh,
/* Process the main & reserve sequences */
/* responsible for finding the PartitionDesc(s) */
- if (!udf_process_sequence(sb, main_s, main_e, fileset))
- return 1;
- udf_sb_free_partitions(sb);
- if (!udf_process_sequence(sb, reserve_s, reserve_e, fileset))
- return 1;
+ ret = udf_process_sequence(sb, main_s, main_e, fileset);
+ if (ret != -EAGAIN)
+ return ret;
udf_sb_free_partitions(sb);
- return 0;
+ ret = udf_process_sequence(sb, reserve_s, reserve_e, fileset);
+ if (ret < 0) {
+ udf_sb_free_partitions(sb);
+ /* No sequence was OK, return -EIO */
+ if (ret == -EAGAIN)
+ ret = -EIO;
+ }
+ return ret;
}
/*
* Check whether there is an anchor block in the given block and
* load Volume Descriptor Sequence if so.
+ *
+ * Returns <0 on error, 0 on success, -EAGAIN is special - try next anchor
+ * block
*/
static int udf_check_anchor_block(struct super_block *sb, sector_t block,
struct kernel_lb_addr *fileset)
@@ -1685,33 +1725,40 @@ static int udf_check_anchor_block(struct super_block *sb, sector_t block,
if (UDF_QUERY_FLAG(sb, UDF_FLAG_VARCONV) &&
udf_fixed_to_variable(block) >=
sb->s_bdev->bd_inode->i_size >> sb->s_blocksize_bits)
- return 0;
+ return -EAGAIN;
bh = udf_read_tagged(sb, block, block, &ident);
if (!bh)
- return 0;
+ return -EAGAIN;
if (ident != TAG_IDENT_AVDP) {
brelse(bh);
- return 0;
+ return -EAGAIN;
}
ret = udf_load_sequence(sb, bh, fileset);
brelse(bh);
return ret;
}
-/* Search for an anchor volume descriptor pointer */
-static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock,
- struct kernel_lb_addr *fileset)
+/*
+ * Search for an anchor volume descriptor pointer.
+ *
+ * Returns < 0 on error, 0 on success. -EAGAIN is special - try next set
+ * of anchors.
+ */
+static int udf_scan_anchors(struct super_block *sb, sector_t *lastblock,
+ struct kernel_lb_addr *fileset)
{
sector_t last[6];
int i;
struct udf_sb_info *sbi = UDF_SB(sb);
int last_count = 0;
+ int ret;
/* First try user provided anchor */
if (sbi->s_anchor) {
- if (udf_check_anchor_block(sb, sbi->s_anchor, fileset))
- return lastblock;
+ ret = udf_check_anchor_block(sb, sbi->s_anchor, fileset);
+ if (ret != -EAGAIN)
+ return ret;
}
/*
* according to spec, anchor is in either:
@@ -1720,39 +1767,46 @@ static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock,
* lastblock
* however, if the disc isn't closed, it could be 512.
*/
- if (udf_check_anchor_block(sb, sbi->s_session + 256, fileset))
- return lastblock;
+ ret = udf_check_anchor_block(sb, sbi->s_session + 256, fileset);
+ if (ret != -EAGAIN)
+ return ret;
/*
* The trouble is which block is the last one. Drives often misreport
* this so we try various possibilities.
*/
- last[last_count++] = lastblock;
- if (lastblock >= 1)
- last[last_count++] = lastblock - 1;
- last[last_count++] = lastblock + 1;
- if (lastblock >= 2)
- last[last_count++] = lastblock - 2;
- if (lastblock >= 150)
- last[last_count++] = lastblock - 150;
- if (lastblock >= 152)
- last[last_count++] = lastblock - 152;
+ last[last_count++] = *lastblock;
+ if (*lastblock >= 1)
+ last[last_count++] = *lastblock - 1;
+ last[last_count++] = *lastblock + 1;
+ if (*lastblock >= 2)
+ last[last_count++] = *lastblock - 2;
+ if (*lastblock >= 150)
+ last[last_count++] = *lastblock - 150;
+ if (*lastblock >= 152)
+ last[last_count++] = *lastblock - 152;
for (i = 0; i < last_count; i++) {
if (last[i] >= sb->s_bdev->bd_inode->i_size >>
sb->s_blocksize_bits)
continue;
- if (udf_check_anchor_block(sb, last[i], fileset))
- return last[i];
+ ret = udf_check_anchor_block(sb, last[i], fileset);
+ if (ret != -EAGAIN) {
+ if (!ret)
+ *lastblock = last[i];
+ return ret;
+ }
if (last[i] < 256)
continue;
- if (udf_check_anchor_block(sb, last[i] - 256, fileset))
- return last[i];
+ ret = udf_check_anchor_block(sb, last[i] - 256, fileset);
+ if (ret != -EAGAIN) {
+ if (!ret)
+ *lastblock = last[i];
+ return ret;
+ }
}
/* Finally try block 512 in case media is open */
- if (udf_check_anchor_block(sb, sbi->s_session + 512, fileset))
- return last[0];
- return 0;
+ return udf_check_anchor_block(sb, sbi->s_session + 512, fileset);
}
/*
@@ -1760,54 +1814,59 @@ static sector_t udf_scan_anchors(struct super_block *sb, sector_t lastblock,
* area specified by it. The function expects sbi->s_lastblock to be the last
* block on the media.
*
- * Return 1 if ok, 0 if not found.
- *
+ * Return <0 on error, 0 if anchor found. -EAGAIN is special meaning anchor
+ * was not found.
*/
static int udf_find_anchor(struct super_block *sb,
struct kernel_lb_addr *fileset)
{
- sector_t lastblock;
struct udf_sb_info *sbi = UDF_SB(sb);
+ sector_t lastblock = sbi->s_last_block;
+ int ret;
- lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
- if (lastblock)
+ ret = udf_scan_anchors(sb, &lastblock, fileset);
+ if (ret != -EAGAIN)
goto out;
/* No anchor found? Try VARCONV conversion of block numbers */
UDF_SET_FLAG(sb, UDF_FLAG_VARCONV);
+ lastblock = udf_variable_to_fixed(sbi->s_last_block);
/* Firstly, we try to not convert number of the last block */
- lastblock = udf_scan_anchors(sb,
- udf_variable_to_fixed(sbi->s_last_block),
- fileset);
- if (lastblock)
+ ret = udf_scan_anchors(sb, &lastblock, fileset);
+ if (ret != -EAGAIN)
goto out;
+ lastblock = sbi->s_last_block;
/* Secondly, we try with converted number of the last block */
- lastblock = udf_scan_anchors(sb, sbi->s_last_block, fileset);
- if (!lastblock) {
+ ret = udf_scan_anchors(sb, &lastblock, fileset);
+ if (ret < 0) {
/* VARCONV didn't help. Clear it. */
UDF_CLEAR_FLAG(sb, UDF_FLAG_VARCONV);
- return 0;
}
out:
- sbi->s_last_block = lastblock;
- return 1;
+ if (ret == 0)
+ sbi->s_last_block = lastblock;
+ return ret;
}
/*
* Check Volume Structure Descriptor, find Anchor block and load Volume
- * Descriptor Sequence
+ * Descriptor Sequence.
+ *
+ * Returns < 0 on error, 0 on success. -EAGAIN is special meaning anchor
+ * block was not found.
*/
static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
int silent, struct kernel_lb_addr *fileset)
{
struct udf_sb_info *sbi = UDF_SB(sb);
loff_t nsr_off;
+ int ret;
if (!sb_set_blocksize(sb, uopt->blocksize)) {
if (!silent)
udf_warn(sb, "Bad block size\n");
- return 0;
+ return -EINVAL;
}
sbi->s_last_block = uopt->lastblock;
if (!uopt->novrs) {
@@ -1828,12 +1887,13 @@ static int udf_load_vrs(struct super_block *sb, struct udf_options *uopt,
/* Look for anchor block and load Volume Descriptor Sequence */
sbi->s_anchor = uopt->anchor;
- if (!udf_find_anchor(sb, fileset)) {
- if (!silent)
+ ret = udf_find_anchor(sb, fileset);
+ if (ret < 0) {
+ if (!silent && ret == -EAGAIN)
udf_warn(sb, "No anchor found\n");
- return 0;
+ return ret;
}
- return 1;
+ return 0;
}
static void udf_open_lvid(struct super_block *sb)
@@ -1939,7 +1999,7 @@ u64 lvid_get_unique_id(struct super_block *sb)
static int udf_fill_super(struct super_block *sb, void *options, int silent)
{
- int ret;
+ int ret = -EINVAL;
struct inode *inode = NULL;
struct udf_options uopt;
struct kernel_lb_addr rootdir, fileset;
@@ -2011,7 +2071,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
} else {
uopt.blocksize = bdev_logical_block_size(sb->s_bdev);
ret = udf_load_vrs(sb, &uopt, silent, &fileset);
- if (!ret && uopt.blocksize != UDF_DEFAULT_BLOCKSIZE) {
+ if (ret == -EAGAIN && uopt.blocksize != UDF_DEFAULT_BLOCKSIZE) {
if (!silent)
pr_notice("Rescanning with blocksize %d\n",
UDF_DEFAULT_BLOCKSIZE);
@@ -2021,8 +2081,11 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
ret = udf_load_vrs(sb, &uopt, silent, &fileset);
}
}
- if (!ret) {
- udf_warn(sb, "No partition found (1)\n");
+ if (ret < 0) {
+ if (ret == -EAGAIN) {
+ udf_warn(sb, "No partition found (1)\n");
+ ret = -EINVAL;
+ }
goto error_out;
}
@@ -2040,9 +2103,13 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
udf_err(sb, "minUDFReadRev=%x (max is %x)\n",
le16_to_cpu(lvidiu->minUDFReadRev),
UDF_MAX_READ_VERSION);
+ ret = -EINVAL;
+ goto error_out;
+ } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION &&
+ !(sb->s_flags & MS_RDONLY)) {
+ ret = -EACCES;
goto error_out;
- } else if (minUDFWriteRev > UDF_MAX_WRITE_VERSION)
- sb->s_flags |= MS_RDONLY;
+ }
sbi->s_udfrev = minUDFWriteRev;
@@ -2054,17 +2121,20 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
if (!sbi->s_partitions) {
udf_warn(sb, "No partition found (2)\n");
+ ret = -EINVAL;
goto error_out;
}
if (sbi->s_partmaps[sbi->s_partition].s_partition_flags &
- UDF_PART_FLAG_READ_ONLY) {
- pr_notice("Partition marked readonly; forcing readonly mount\n");
- sb->s_flags |= MS_RDONLY;
+ UDF_PART_FLAG_READ_ONLY &&
+ !(sb->s_flags & MS_RDONLY)) {
+ ret = -EACCES;
+ goto error_out;
}
if (udf_find_fileset(sb, &fileset, &rootdir)) {
udf_warn(sb, "No fileset found\n");
+ ret = -EINVAL;
goto error_out;
}
@@ -2086,6 +2156,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
if (!inode) {
udf_err(sb, "Error in udf_iget, block=%d, partition=%d\n",
rootdir.logicalBlockNum, rootdir.partitionReferenceNum);
+ ret = -EIO;
goto error_out;
}
@@ -2093,6 +2164,7 @@ static int udf_fill_super(struct super_block *sb, void *options, int silent)
sb->s_root = d_make_root(inode);
if (!sb->s_root) {
udf_err(sb, "Couldn't allocate root dentry\n");
+ ret = -ENOMEM;
goto error_out;
}
sb->s_maxbytes = MAX_LFS_FILESIZE;
@@ -2113,7 +2185,7 @@ error_out:
kfree(sbi);
sb->s_fs_info = NULL;
- return -EINVAL;
+ return ret;
}
void _udf_err(struct super_block *sb, const char *function,
diff --git a/include/linux/hid.h b/include/linux/hid.h
index ff545cc..6e18550 100644
--- a/include/linux/hid.h
+++ b/include/linux/hid.h
@@ -749,6 +749,10 @@ void hid_output_report(struct hid_report *report, __u8 *data);
struct hid_device *hid_allocate_device(void);
struct hid_report *hid_register_report(struct hid_device *device, unsigned type, unsigned id);
int hid_parse_report(struct hid_device *hid, __u8 *start, unsigned size);
+struct hid_report *hid_validate_values(struct hid_device *hid,
+ unsigned int type, unsigned int id,
+ unsigned int field_index,
+ unsigned int report_counts);
int hid_open_report(struct hid_device *device);
int hid_check_keys_pressed(struct hid_device *hid);
int hid_connect(struct hid_device *hid, unsigned int connect_mask);
diff --git a/include/linux/timex.h b/include/linux/timex.h
index b3726e6..dd3edd7 100644
--- a/include/linux/timex.h
+++ b/include/linux/timex.h
@@ -141,6 +141,7 @@ extern int do_adjtimex(struct timex *);
extern void hardpps(const struct timespec *, const struct timespec *);
int read_current_timer(unsigned long *timer_val);
+void ntp_notify_cmos_timer(void);
/* The clock frequency of the i8253/i8254 PIT */
#define PIT_TICK_RATE 1193182ul
diff --git a/include/uapi/drm/radeon_drm.h b/include/uapi/drm/radeon_drm.h
index 321d4ac..fa8b3ad 100644
--- a/include/uapi/drm/radeon_drm.h
+++ b/include/uapi/drm/radeon_drm.h
@@ -979,6 +979,8 @@ struct drm_radeon_cs {
#define RADEON_INFO_RING_WORKING 0x15
/* SI tile mode array */
#define RADEON_INFO_SI_TILE_MODE_ARRAY 0x16
+/* query if CP DMA is supported on the compute ring */
+#define RADEON_INFO_SI_CP_DMA_COMPUTE 0x17
struct drm_radeon_info {
diff --git a/kernel/audit.c b/kernel/audit.c
index 91e53d0..7b0e23a 100644
--- a/kernel/audit.c
+++ b/kernel/audit.c
@@ -1117,9 +1117,10 @@ struct audit_buffer *audit_log_start(struct audit_context *ctx, gfp_t gfp_mask,
sleep_time = timeout_start + audit_backlog_wait_time -
jiffies;
- if ((long)sleep_time > 0)
+ if ((long)sleep_time > 0) {
wait_for_auditd(sleep_time);
- continue;
+ continue;
+ }
}
if (audit_rate_check() && printk_ratelimit())
printk(KERN_WARNING
diff --git a/kernel/sched/cputime.c b/kernel/sched/cputime.c
index b5ccba2..1101d92 100644
--- a/kernel/sched/cputime.c
+++ b/kernel/sched/cputime.c
@@ -558,7 +558,7 @@ static void cputime_adjust(struct task_cputime *curr,
struct cputime *prev,
cputime_t *ut, cputime_t *st)
{
- cputime_t rtime, stime, utime, total;
+ cputime_t rtime, stime, utime;
if (vtime_accounting_enabled()) {
*ut = curr->utime;
@@ -566,9 +566,6 @@ static void cputime_adjust(struct task_cputime *curr,
return;
}
- stime = curr->stime;
- total = stime + curr->utime;
-
/*
* Tick based cputime accounting depend on random scheduling
* timeslices of a task to be interrupted or not by the timer.
@@ -589,13 +586,19 @@ static void cputime_adjust(struct task_cputime *curr,
if (prev->stime + prev->utime >= rtime)
goto out;
- if (total) {
+ stime = curr->stime;
+ utime = curr->utime;
+
+ if (utime == 0) {
+ stime = rtime;
+ } else if (stime == 0) {
+ utime = rtime;
+ } else {
+ cputime_t total = stime + utime;
+
stime = scale_stime((__force u64)stime,
(__force u64)rtime, (__force u64)total);
utime = rtime - stime;
- } else {
- stime = rtime;
- utime = 0;
}
/*
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 03b73be..009a62b 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -5778,11 +5778,15 @@ static void task_fork_fair(struct task_struct *p)
cfs_rq = task_cfs_rq(current);
curr = cfs_rq->curr;
- if (unlikely(task_cpu(p) != this_cpu)) {
- rcu_read_lock();
- __set_task_cpu(p, this_cpu);
- rcu_read_unlock();
- }
+ /*
+ * Not only the cpu but also the task_group of the parent might have
+ * been changed after parent->se.parent,cfs_rq were copied to
+ * child->se.parent,cfs_rq. So call __set_task_cpu() to make those
+ * of child point to valid ones.
+ */
+ rcu_read_lock();
+ __set_task_cpu(p, this_cpu);
+ rcu_read_unlock();
update_curr(cfs_rq);
diff --git a/kernel/time/ntp.c b/kernel/time/ntp.c
index 8f5b3b9..bb22151 100644
--- a/kernel/time/ntp.c
+++ b/kernel/time/ntp.c
@@ -516,13 +516,13 @@ static void sync_cmos_clock(struct work_struct *work)
schedule_delayed_work(&sync_cmos_work, timespec_to_jiffies(&next));
}
-static void notify_cmos_timer(void)
+void ntp_notify_cmos_timer(void)
{
schedule_delayed_work(&sync_cmos_work, 0);
}
#else
-static inline void notify_cmos_timer(void) { }
+void ntp_notify_cmos_timer(void) { }
#endif
@@ -687,8 +687,6 @@ int __do_adjtimex(struct timex *txc, struct timespec *ts, s32 *time_tai)
if (!(time_status & STA_NANO))
txc->time.tv_usec /= NSEC_PER_USEC;
- notify_cmos_timer();
-
return result;
}
diff --git a/kernel/time/timekeeping.c b/kernel/time/timekeeping.c
index baeeb5c..fcc261c 100644
--- a/kernel/time/timekeeping.c
+++ b/kernel/time/timekeeping.c
@@ -1682,6 +1682,8 @@ int do_adjtimex(struct timex *txc)
write_seqcount_end(&timekeeper_seq);
raw_spin_unlock_irqrestore(&timekeeper_lock, flags);
+ ntp_notify_cmos_timer();
+
return ret;
}
diff --git a/mm/swap.c b/mm/swap.c
index dfd7d71..9f2225f 100644
--- a/mm/swap.c
+++ b/mm/swap.c
@@ -31,6 +31,7 @@
#include <linux/memcontrol.h>
#include <linux/gfp.h>
#include <linux/uio.h>
+#include <linux/hugetlb.h>
#include "internal.h"
@@ -78,6 +79,19 @@ static void __put_compound_page(struct page *page)
static void put_compound_page(struct page *page)
{
+ /*
+ * hugetlbfs pages cannot be split from under us. If this is a
+ * hugetlbfs page, check refcount on head page and release the page if
+ * the refcount becomes zero.
+ */
+ if (PageHuge(page)) {
+ page = compound_head(page);
+ if (put_page_testzero(page))
+ __put_compound_page(page);
+
+ return;
+ }
+
if (unlikely(PageTail(page))) {
/* __split_huge_page_refcount can run under us */
struct page *page_head = compound_trans_head(page);
@@ -181,38 +195,51 @@ bool __get_page_tail(struct page *page)
* proper PT lock that already serializes against
* split_huge_page().
*/
- unsigned long flags;
bool got = false;
- struct page *page_head = compound_trans_head(page);
+ struct page *page_head;
- if (likely(page != page_head && get_page_unless_zero(page_head))) {
+ /*
+ * If this is a hugetlbfs page it cannot be split under us. Simply
+ * increment refcount for the head page.
+ */
+ if (PageHuge(page)) {
+ page_head = compound_head(page);
+ atomic_inc(&page_head->_count);
+ got = true;
+ } else {
+ unsigned long flags;
+
+ page_head = compound_trans_head(page);
+ if (likely(page != page_head &&
+ get_page_unless_zero(page_head))) {
+
+ /* Ref to put_compound_page() comment. */
+ if (PageSlab(page_head)) {
+ if (likely(PageTail(page))) {
+ __get_page_tail_foll(page, false);
+ return true;
+ } else {
+ put_page(page_head);
+ return false;
+ }
+ }
- /* Ref to put_compound_page() comment. */
- if (PageSlab(page_head)) {
+ /*
+ * page_head wasn't a dangling pointer but it
+ * may not be a head page anymore by the time
+ * we obtain the lock. That is ok as long as it
+ * can't be freed from under us.
+ */
+ flags = compound_lock_irqsave(page_head);
+ /* here __split_huge_page_refcount won't run anymore */
if (likely(PageTail(page))) {
__get_page_tail_foll(page, false);
- return true;
- } else {
- put_page(page_head);
- return false;
+ got = true;
}
+ compound_unlock_irqrestore(page_head, flags);
+ if (unlikely(!got))
+ put_page(page_head);
}
-
- /*
- * page_head wasn't a dangling pointer but it
- * may not be a head page anymore by the time
- * we obtain the lock. That is ok as long as it
- * can't be freed from under us.
- */
- flags = compound_lock_irqsave(page_head);
- /* here __split_huge_page_refcount won't run anymore */
- if (likely(PageTail(page))) {
- __get_page_tail_foll(page, false);
- got = true;
- }
- compound_unlock_irqrestore(page_head, flags);
- if (unlikely(!got))
- put_page(page_head);
}
return got;
}
diff --git a/net/netfilter/ipset/ip_set_hash_gen.h b/net/netfilter/ipset/ip_set_hash_gen.h
index 57beb17..707bc52 100644
--- a/net/netfilter/ipset/ip_set_hash_gen.h
+++ b/net/netfilter/ipset/ip_set_hash_gen.h
@@ -325,18 +325,22 @@ mtype_add_cidr(struct htype *h, u8 cidr, u8 nets_length)
static void
mtype_del_cidr(struct htype *h, u8 cidr, u8 nets_length)
{
- u8 i, j;
-
- for (i = 0; i < nets_length - 1 && h->nets[i].cidr != cidr; i++)
- ;
- h->nets[i].nets--;
-
- if (h->nets[i].nets != 0)
- return;
-
- for (j = i; j < nets_length - 1 && h->nets[j].nets; j++) {
- h->nets[j].cidr = h->nets[j + 1].cidr;
- h->nets[j].nets = h->nets[j + 1].nets;
+ u8 i, j, net_end = nets_length - 1;
+
+ for (i = 0; i < nets_length; i++) {
+ if (h->nets[i].cidr != cidr)
+ continue;
+ if (h->nets[i].nets > 1 || i == net_end ||
+ h->nets[i + 1].nets == 0) {
+ h->nets[i].nets--;
+ return;
+ }
+ for (j = i; j < net_end && h->nets[j].nets; j++) {
+ h->nets[j].cidr = h->nets[j + 1].cidr;
+ h->nets[j].nets = h->nets[j + 1].nets;
+ }
+ h->nets[j].nets = 0;
+ return;
}
}
#endif
diff --git a/net/sunrpc/auth_gss/gss_rpc_upcall.c b/net/sunrpc/auth_gss/gss_rpc_upcall.c
index af7ffd4..f1eb0d1 100644
--- a/net/sunrpc/auth_gss/gss_rpc_upcall.c
+++ b/net/sunrpc/auth_gss/gss_rpc_upcall.c
@@ -213,6 +213,26 @@ static int gssp_call(struct net *net, struct rpc_message *msg)
return status;
}
+static void gssp_free_receive_pages(struct gssx_arg_accept_sec_context *arg)
+{
+ int i;
+
+ for (i = 0; i < arg->npages && arg->pages[i]; i++)
+ __free_page(arg->pages[i]);
+}
+
+static int gssp_alloc_receive_pages(struct gssx_arg_accept_sec_context *arg)
+{
+ arg->npages = DIV_ROUND_UP(NGROUPS_MAX * 4, PAGE_SIZE);
+ arg->pages = kzalloc(arg->npages * sizeof(struct page *), GFP_KERNEL);
+ /*
+ * XXX: actual pages are allocated by xdr layer in
+ * xdr_partial_copy_from_skb.
+ */
+ if (!arg->pages)
+ return -ENOMEM;
+ return 0;
+}
/*
* Public functions
@@ -261,10 +281,16 @@ int gssp_accept_sec_context_upcall(struct net *net,
arg.context_handle = &ctxh;
res.output_token->len = GSSX_max_output_token_sz;
+ ret = gssp_alloc_receive_pages(&arg);
+ if (ret)
+ return ret;
+
/* use nfs/ for targ_name ? */
ret = gssp_call(net, &msg);
+ gssp_free_receive_pages(&arg);
+
/* we need to fetch all data even in case of error so
* that we can free special strctures is they have been allocated */
data->major_status = res.status.major_status;
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.c b/net/sunrpc/auth_gss/gss_rpc_xdr.c
index 3c85d1c..f0f78c5 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.c
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.c
@@ -166,14 +166,15 @@ static int dummy_dec_opt_array(struct xdr_stream *xdr,
return 0;
}
-static int get_s32(void **p, void *max, s32 *res)
+static int get_host_u32(struct xdr_stream *xdr, u32 *res)
{
- void *base = *p;
- void *next = (void *)((char *)base + sizeof(s32));
- if (unlikely(next > max || next < base))
+ __be32 *p;
+
+ p = xdr_inline_decode(xdr, 4);
+ if (!p)
return -EINVAL;
- memcpy(res, base, sizeof(s32));
- *p = next;
+ /* Contents of linux creds are all host-endian: */
+ memcpy(res, p, sizeof(u32));
return 0;
}
@@ -182,9 +183,9 @@ static int gssx_dec_linux_creds(struct xdr_stream *xdr,
{
u32 length;
__be32 *p;
- void *q, *end;
- s32 tmp;
- int N, i, err;
+ u32 tmp;
+ u32 N;
+ int i, err;
p = xdr_inline_decode(xdr, 4);
if (unlikely(p == NULL))
@@ -192,33 +193,28 @@ static int gssx_dec_linux_creds(struct xdr_stream *xdr,
length = be32_to_cpup(p);
- /* FIXME: we do not want to use the scratch buffer for this one
- * may need to use functions that allows us to access an io vector
- * directly */
- p = xdr_inline_decode(xdr, length);
- if (unlikely(p == NULL))
+ if (length > (3 + NGROUPS_MAX) * sizeof(u32))
return -ENOSPC;
- q = p;
- end = q + length;
-
/* uid */
- err = get_s32(&q, end, &tmp);
+ err = get_host_u32(xdr, &tmp);
if (err)
return err;
creds->cr_uid = make_kuid(&init_user_ns, tmp);
/* gid */
- err = get_s32(&q, end, &tmp);
+ err = get_host_u32(xdr, &tmp);
if (err)
return err;
creds->cr_gid = make_kgid(&init_user_ns, tmp);
/* number of additional gid's */
- err = get_s32(&q, end, &tmp);
+ err = get_host_u32(xdr, &tmp);
if (err)
return err;
N = tmp;
+ if ((3 + N) * sizeof(u32) != length)
+ return -EINVAL;
creds->cr_group_info = groups_alloc(N);
if (creds->cr_group_info == NULL)
return -ENOMEM;
@@ -226,7 +222,7 @@ static int gssx_dec_linux_creds(struct xdr_stream *xdr,
/* gid's */
for (i = 0; i < N; i++) {
kgid_t kgid;
- err = get_s32(&q, end, &tmp);
+ err = get_host_u32(xdr, &tmp);
if (err)
goto out_free_groups;
err = -EINVAL;
@@ -784,6 +780,9 @@ void gssx_enc_accept_sec_context(struct rpc_rqst *req,
/* arg->options */
err = dummy_enc_opt_array(xdr, &arg->options);
+ xdr_inline_pages(&req->rq_rcv_buf,
+ PAGE_SIZE/2 /* pretty arbitrary */,
+ arg->pages, 0 /* page base */, arg->npages * PAGE_SIZE);
done:
if (err)
dprintk("RPC: gssx_enc_accept_sec_context: %d\n", err);
diff --git a/net/sunrpc/auth_gss/gss_rpc_xdr.h b/net/sunrpc/auth_gss/gss_rpc_xdr.h
index 1c98b27..685a688 100644
--- a/net/sunrpc/auth_gss/gss_rpc_xdr.h
+++ b/net/sunrpc/auth_gss/gss_rpc_xdr.h
@@ -147,6 +147,8 @@ struct gssx_arg_accept_sec_context {
struct gssx_cb *input_cb;
u32 ret_deleg_cred;
struct gssx_option_array options;
+ struct page **pages;
+ unsigned int npages;
};
struct gssx_res_accept_sec_context {
@@ -240,7 +242,8 @@ int gssx_dec_accept_sec_context(struct rpc_rqst *rqstp,
2 * GSSX_max_princ_sz + \
8 + 8 + 4 + 4 + 4)
#define GSSX_max_output_token_sz 1024
-#define GSSX_max_creds_sz (4 + 4 + 4 + NGROUPS_MAX * 4)
+/* grouplist not included; we allocate separate pages for that: */
+#define GSSX_max_creds_sz (4 + 4 + 4 /* + NGROUPS_MAX*4 */)
#define GSSX_RES_accept_sec_context_sz (GSSX_default_status_sz + \
GSSX_default_ctx_sz + \
GSSX_max_output_token_sz + \
diff --git a/tools/perf/util/map.c b/tools/perf/util/map.c
index 6fcb9de..8bcdf9e 100644
--- a/tools/perf/util/map.c
+++ b/tools/perf/util/map.c
@@ -21,6 +21,7 @@ const char *map_type__name[MAP__NR_TYPES] = {
static inline int is_anon_memory(const char *filename)
{
return !strcmp(filename, "//anon") ||
+ !strcmp(filename, "/dev/zero (deleted)") ||
!strcmp(filename, "/anon_hugepage (deleted)");
}
--
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