[-mm patch] drivers/net/vioc/: possible cleanups

From: Adrian Bunk
Date: Mon Feb 19 2007 - 19:24:05 EST

On Thu, Feb 15, 2007 at 05:14:08AM -0800, Andrew Morton wrote:
>...
> Changes since 2.6.20-rc6-mm3:
>...
> +Fabric7-VIOC-driver.patch
>...
> netdev stuff
>...


This patch contains the following possible cleanups:
- remove dead #ifdef EXPORT_SYMTAB code
- no "inline" functions in C files - gcc knows best whether or not to
inline static functions
- move the vioc_ethtool_ops prototype to a header file
- make needlessly global code static
- #if 0 unused code
- vioc_irq.c: remove the unused vioc_driver_lock

Signed-off-by: Adrian Bunk <bunk@xxxxxxxxx>

---

drivers/net/vioc/f7/sppapi.h | 2 -
drivers/net/vioc/khash.h | 10 -----
drivers/net/vioc/spp.c | 60 +++++++++++++++++++-----------
drivers/net/vioc/vioc_api.c | 5 ++
drivers/net/vioc/vioc_api.h | 3 +
drivers/net/vioc/vioc_driver.c | 3 -
drivers/net/vioc/vioc_ethtool.c | 2 -
drivers/net/vioc/vioc_irq.c | 9 +---
drivers/net/vioc/vioc_provision.c | 16 +++++---
drivers/net/vioc/vioc_receive.c | 2 -
drivers/net/vioc/vioc_spp.c | 6 +--
drivers/net/vioc/vioc_transmit.c | 40 +++++++++++---------
12 files changed, 85 insertions(+), 73 deletions(-)

--- linux-2.6.20-mm1/drivers/net/vioc/vioc_driver.c.old 2007-02-18 01:14:31.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_driver.c 2007-02-18 01:14:35.000000000 +0100
@@ -868,6 +868,3 @@
module_init(vioc_module_init);
module_exit(vioc_module_exit);

-#ifdef EXPORT_SYMTAB
-EXPORT_SYMBOL(vioc_viocdev);
-#endif /* EXPORT_SYMTAB */
--- linux-2.6.20-mm1/drivers/net/vioc/khash.h.old 2007-02-18 01:16:28.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/khash.h 2007-02-18 01:25:29.000000000 +0100
@@ -52,14 +52,4 @@
};


-struct shash_t *hashT_create(u32, size_t, size_t, u32(*)(unsigned char *, unsigned long), int(*)(void *, void *), unsigned int);
-int hashT_delete(struct shash_t * , void *);
-struct hash_elem_t *hashT_lookup(struct shash_t * , void *);
-struct hash_elem_t *hashT_add(struct shash_t *, void *);
-void hashT_destroy(struct shash_t *);
-/* Accesors */
-void **hashT_getkeys(struct shash_t *);
-size_t hashT_tablesize(struct shash_t *);
-size_t hashT_size(struct shash_t *);
-
#endif
--- linux-2.6.20-mm1/drivers/net/vioc/f7/sppapi.h.old 2007-02-18 01:26:44.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/f7/sppapi.h 2007-02-18 01:26:57.000000000 +0100
@@ -234,7 +234,5 @@

extern void spp_msg_unregister(u32 key_facility);

-extern int read_spp_regbank32(int vioc, int bank, char *buffer);
-
#endif /* _SPPAPI_H_ */

--- linux-2.6.20-mm1/drivers/net/vioc/spp.c.old 2007-02-18 01:19:34.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/spp.c 2007-02-18 01:27:13.000000000 +0100
@@ -50,6 +50,15 @@
c -= a; c -= b; c ^= (b >> 15); \
}

+static struct hash_elem_t *hashT_add(struct shash_t *htable, void *key);
+static struct shash_t *hashT_create(u32 sizehint, size_t keybuf_size,
+ size_t databuf_size,
+ u32(*hfunc) (unsigned char *,
+ unsigned long),
+ int (*cfunc) (void *, void *),
+ unsigned int flags);
+static void hashT_destroy(struct shash_t *htable);
+static struct hash_elem_t *hashT_lookup(struct shash_t *htable, void *key);

struct shash_t {
/* Common fields for all hash tables types */
@@ -65,7 +74,9 @@
};

struct hash_ops {
+#if 0
int (*delete) (struct shash_t *, void *);
+#endif /* 0 */
struct hash_elem_t *(*lookup) (struct shash_t *, void *);
void (*destroy) (struct shash_t *);
struct hash_elem_t *(*add) (struct shash_t *, void *);
@@ -143,6 +154,7 @@
return ((htable->hash_fn(key, len)) & (htable->tsize - 1));
}

+#if 0
/* Data associated to this key MUST be freed by the caller */
static int ch_delete(struct shash_t *htable, void *key)
{
@@ -181,6 +193,7 @@

return -1;
}
+#endif /* 0 */

static void ch_destroy(struct shash_t *htable)
{
@@ -232,16 +245,21 @@
}

/* Accesors ******************************************************************/
-inline size_t hashT_tablesize(struct shash_t * htable)
+
+#if 0
+
+size_t hashT_tablesize(struct shash_t * htable)
{
return htable->tsize;
}

-inline size_t hashT_size(struct shash_t * htable)
+size_t hashT_size(struct shash_t * htable)
{
return htable->nelems;
}

+#endif /* 0 */
+
static struct hash_elem_t *ch_lookup(struct shash_t *htable, void *key)
{
u32 idx;
@@ -330,15 +348,17 @@
return 1;
}

-struct hash_ops ch_ops = {
+static struct hash_ops ch_ops = {
+#if 0
.delete = ch_delete,
+#endif /* 0 */
.lookup = ch_lookup,
.destroy = ch_destroy,
.getkeys = ch_getkeys,
.add = ch_add
};

-struct facility fTable[FACILITY_CNT];
+static struct facility fTable[FACILITY_CNT];

int spp_init(void)
{
@@ -511,7 +531,7 @@
spin_unlock(&elem->lock);
}

-
+#if 0
int read_spp_regbank32(int vioc_idx, int bank, char *buffer)
{
struct vioc_device *viocdev = vioc_viocdev(vioc_idx);
@@ -531,14 +551,14 @@

return i;
}
+#endif /* 0 */

-struct shash_t *hashT_create(u32 sizehint,
- size_t keybuf_size,
- size_t databuf_size,
- u32(*hfunc) (unsigned char *,
- unsigned long),
- int (*cfunc) (void *, void *),
- unsigned int flags)
+static struct shash_t *hashT_create(u32 sizehint, size_t keybuf_size,
+ size_t databuf_size,
+ u32(*hfunc) (unsigned char *,
+ unsigned long),
+ int (*cfunc) (void *, void *),
+ unsigned int flags)
{
struct shash_t *htable;
u32 size = 0; /* Table size */
@@ -591,36 +611,34 @@
return htable;
}

+#if 0
int hashT_delete(struct shash_t *htable, void *key)
{
return htable->h_ops->delete(htable, key);
}
+#endif /* 0 */

-struct hash_elem_t *hashT_add(struct shash_t *htable, void *key)
+static struct hash_elem_t *hashT_add(struct shash_t *htable, void *key)
{
return htable->h_ops->add(htable, key);
}

-struct hash_elem_t *hashT_lookup(struct shash_t *htable, void *key)
+static struct hash_elem_t *hashT_lookup(struct shash_t *htable, void *key)
{
return htable->h_ops->lookup(htable, key);
}

-void hashT_destroy(struct shash_t *htable)
+static void hashT_destroy(struct shash_t *htable)
{
-
htable->h_ops->destroy(htable);

vfree(htable);
}

+#if 0
void **hashT_getkeys(struct shash_t *htable)
{
return htable->h_ops->getkeys(htable);
}
+#endif /* 0 */

-#ifdef EXPORT_SYMTAB
-EXPORT_SYMBOL(spp_msg_register);
-EXPORT_SYMBOL(spp_msg_unregister);
-EXPORT_SYMBOL(read_spp_regbank32);
-#endif
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_spp.c.old 2007-02-18 01:22:54.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_spp.c 2007-02-18 01:34:50.000000000 +0100
@@ -84,12 +84,12 @@

static DECLARE_MUTEX(vnic_prov_sem);

-static inline void vnic_prov_get_sema(void)
+static void vnic_prov_get_sema(void)
{
down(&vnic_prov_sem);
}

-static inline void vnic_prov_put_sema(void)
+static void vnic_prov_put_sema(void)
{
up(&vnic_prov_sem);
}
@@ -290,7 +290,7 @@
vioc_reg_wr(1, viocdev->ba.virt, SPP_HB_SENSOR_REG);
}

-void vioc_reset_rq_to_bmc(int vioc_id, u32 command)
+static void vioc_reset_rq_to_bmc(int vioc_id, u32 command)
{
struct vioc_device *viocdev = vioc_viocdev(0);

--- linux-2.6.20-mm1/drivers/net/vioc/vioc_transmit.c.old 2007-02-18 01:23:30.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_transmit.c 2007-02-18 12:28:58.000000000 +0100
@@ -73,49 +73,52 @@
#define TXQ0 0
#define NOT_SET -1

-static inline u32 vnic_rd_txd_ctl(struct txq *txq)
+static u32 vnic_rd_txd_ctl(struct txq *txq)
{
return readl(txq->va_of_vreg_veng_txd_ctl);
}

-static inline void vnic_ring_tx_bell(struct txq *txq)
+static void vnic_ring_tx_bell(struct txq *txq)
{
writel(txq->shadow_VREG_VENG_TXD_CTL | VREG_VENG_TXD_CTL_QRING_MASK,
txq->va_of_vreg_veng_txd_ctl);
txq->bells++;
}

-static inline void vnic_reset_tx_ring_err(struct txq *txq)
+static void vnic_reset_tx_ring_err(struct txq *txq)
{
writel(txq->shadow_VREG_VENG_TXD_CTL |
(VREG_VENG_TXD_CTL_QENABLE_MASK | VREG_VENG_TXD_CTL_CLEARMASK),
txq->va_of_vreg_veng_txd_ctl);
}

-static inline void vnic_enable_tx_ring(struct txq *txq)
+static void vnic_enable_tx_ring(struct txq *txq)
{
txq->shadow_VREG_VENG_TXD_CTL = VREG_VENG_TXD_CTL_QENABLE_MASK;
writel(txq->shadow_VREG_VENG_TXD_CTL, txq->va_of_vreg_veng_txd_ctl);
}

-static inline void vnic_disable_tx_ring(struct txq *txq)
+static void vnic_disable_tx_ring(struct txq *txq)
{
txq->shadow_VREG_VENG_TXD_CTL = 0;
writel(0, txq->va_of_vreg_veng_txd_ctl);
}

-static inline void vnic_pause_tx_ring(struct txq *txq)
+#if 0
+
+static void vnic_pause_tx_ring(struct txq *txq)
{
txq->shadow_VREG_VENG_TXD_CTL |= VREG_VENG_TXD_CTL_QPAUSE_MASK;
writel(txq->shadow_VREG_VENG_TXD_CTL, txq->va_of_vreg_veng_txd_ctl);
}

-static inline void vnic_resume_tx_ring(struct txq *txq)
+static void vnic_resume_tx_ring(struct txq *txq)
{
txq->shadow_VREG_VENG_TXD_CTL &= ~VREG_VENG_TXD_CTL_QPAUSE_MASK;
writel(txq->shadow_VREG_VENG_TXD_CTL, txq->va_of_vreg_veng_txd_ctl);
}

+#endif /* 0 */

/* TxQ must be locked */
static void vnic_reset_txq(struct vnic_device *vnicdev, struct txq *txq)
@@ -395,8 +398,9 @@
viocdev->vioc_stats.tx_tasklets++;
// read_unlock(&viocdev->lock);
}
-void vnic_enqueue_tx_pkt(struct vnic_device *vnicdev, struct txq *txq,
- struct sk_buff *skb, struct vioc_prov *prov)
+
+static void vnic_enqueue_tx_pkt(struct vnic_device *vnicdev, struct txq *txq,
+ struct sk_buff *skb, struct vioc_prov *prov)
{
int idx, sop_idx, eop_idx, f;
struct tx_pktBufDesc_Phys_w *txd;
@@ -512,8 +516,9 @@

}

-void vnic_enqueue_tx_buffers(struct vnic_device *vnicdev, struct txq *txq,
- struct sk_buff *skb, struct vioc_prov *prov)
+static void vnic_enqueue_tx_buffers(struct vnic_device *vnicdev,
+ struct txq *txq, struct sk_buff *skb,
+ struct vioc_prov *prov)
{
int len;
int idx;
@@ -586,7 +591,7 @@
txq->next_to_use = idx;
}

-static inline void init_f7_header(struct sk_buff *skb)
+static void init_f7_header(struct sk_buff *skb)
{
struct vioc_f7pf_w *f7p;
unsigned char tag;
@@ -675,7 +680,7 @@
* not hold - add a tx_enabled flag to the vnic struct protected
* by txq->lock. Or just read-lock the VIOC.
*/
-int vnic_start_xmit(struct sk_buff *skb, struct net_device *netdev)
+static int vnic_start_xmit(struct sk_buff *skb, struct net_device *netdev)
{
struct vnic_device *vnicdev = netdev->priv;
struct txq *txq = &vnicdev->txq;
@@ -734,8 +739,9 @@
* saddr=NULL means use device source address
* daddr=NULL means leave destination address (eg unresolved arp)
*/
-int vnic_eth_header(struct sk_buff *skb, struct net_device *dev,
- unsigned short type, void *daddr, void *saddr, unsigned len)
+static int vnic_eth_header(struct sk_buff *skb, struct net_device *dev,
+ unsigned short type, void *daddr, void *saddr,
+ unsigned len)
{
struct ethhdr *eth = (struct ethhdr *)skb_push(skb, ETH_HLEN);

@@ -952,6 +958,7 @@
vnicdev->txq.vbuf = NULL;
}

+#if 0
void vioc_reset_if_tx(struct net_device *netdev)
{
struct vnic_device *vnicdev = netdev->priv;
@@ -959,8 +966,7 @@

vnic_reset_txq(vnicdev, txq);
}
-
-extern struct ethtool_ops vioc_ethtool_ops;
+#endif /* 0 */

/**
* vnic_uninit - Device Termination Routine
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_api.h.old 2007-02-18 01:28:17.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_api.h 2007-02-18 01:56:08.000000000 +0100
@@ -30,11 +30,12 @@
#include <asm/io.h>
#include "vioc_vnic.h"

+extern struct ethtool_ops vioc_ethtool_ops;
+
extern int vioc_vnic_resources_set(int vioc_id, u32 vnic_id);
extern void vioc_sw_reset(int vioc_id);
extern u32 vioc_rrd(int vioc_id, int module_id, int vnic_id, int reg_addr);
extern int vioc_rwr(int vioc_id, int module_id, int vnic_id, int reg_addr, u32 value);
-extern int vioc_set_vnic_mac(int vioc_id, u32 vnic_id, u8 * p);
extern int vioc_get_vnic_mac(int vioc_id, u32 vnic_id, u8 * p);
extern int vioc_set_txq(int vioc_id, u32 vnic_id, u32 txq_id, dma_addr_t base,
u32 num_elements);
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_api.c.old 2007-02-18 01:27:41.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_api.c 2007-02-18 01:28:59.000000000 +0100
@@ -46,7 +46,8 @@
#include "vioc_vnic.h"
#include "vioc_api.h"

-int vioc_set_rx_intr_param(int viocdev_idx, int rx_intr_id, u32 timeout, u32 cntout)
+static int vioc_set_rx_intr_param(int viocdev_idx, int rx_intr_id,
+ u32 timeout, u32 cntout)
{
int ret = 0;
struct vioc_device *viocdev;
@@ -83,6 +84,7 @@
return 0;
}

+#if 0
int vioc_set_vnic_mac(int viocdev_idx, u32 vnic_id, u8 * p)
{
struct vioc_device *viocdev = vioc_viocdev(viocdev_idx);
@@ -101,6 +103,7 @@

return 0;
}
+#endif /* 0 */

int vioc_set_txq(int viocdev_idx, u32 vnic_id, u32 txq_id, dma_addr_t base,
u32 num_elements)
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_ethtool.c.old 2007-02-18 01:29:21.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_ethtool.c 2007-02-18 01:29:36.000000000 +0100
@@ -155,7 +155,7 @@
return 0;
}

-int vioc_trace;
+static int vioc_trace;

static u32 vnic_get_msglevel(struct net_device *netdev)
{
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_irq.c.old 2007-02-18 01:29:59.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_irq.c 2007-02-18 12:56:33.000000000 +0100
@@ -55,9 +55,6 @@
#define VIOC_INTERRUPTS_CNT 19 /* 16 Rx + 1 Tx + 1 BMC + 1 Error */
#define VIOC_INTERRUPTS_CNT_PIN_IRQ 4 /* 2 Rx + 1 Tx + 1 BMC */

-#define VIOC_SLVAR(x) x spinlock_t vioc_driver_lock = SPIN_LOCK_UNLOCKED
-#define VIOC_CLI spin_lock_irq(&vioc_driver_lock)
-#define VIOC_STI spin_unlock_irq(&vioc_driver_lock)
#define IRQRETURN return IRQ_HANDLED
#define TX_IRQ_IDX 16
#define BMC_IRQ_IDX 17
@@ -92,9 +89,7 @@
};

/* GLOBAL VIOC Interrupt table/structure */
-struct viocdev_intreq vioc_interrupts[VIOC_MAX_VIOCS];
-
-VIOC_SLVAR();
+static struct viocdev_intreq vioc_interrupts[VIOC_MAX_VIOCS];

static irqreturn_t taskq_handler(int i, void *p)
{
@@ -227,7 +222,7 @@
return 0;
}

-int get_pci_pin_irq(struct pci_dev *dev_in, int func)
+static int get_pci_pin_irq(struct pci_dev *dev_in, int func)
{
struct pci_dev *dev = NULL;
unsigned int slot, fn, devfn;
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_provision.c.old 2007-02-18 01:32:09.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_provision.c 2007-02-18 12:55:56.000000000 +0100
@@ -75,7 +75,7 @@

*/

-struct vnic_prov_def vnic_set_0 = {
+static struct vnic_prov_def vnic_set_0 = {
.rxd_ring[0].buf_size = RXDQ_SMALL_ALLOC_BUFSIZE,
.rxd_ring[0].entries = RXDQ_SMALL_ENTRIES,
.rxd_ring[0].id = 0,
@@ -92,7 +92,7 @@
0,.rxc_intr_id = 0
};

-struct vnic_prov_def vnic_set_1 = {
+static struct vnic_prov_def vnic_set_1 = {
.rxd_ring[0].buf_size = RXDQ_SMALL_ALLOC_BUFSIZE,
.rxd_ring[0].entries = RXDQ_SMALL_ENTRIES,
.rxd_ring[0].id = 4,
@@ -109,7 +109,7 @@
1,.rxc_intr_id = 1
};

-struct vnic_prov_def vnic_set_2 = {
+static struct vnic_prov_def vnic_set_2 = {
.rxd_ring[0].buf_size = RXDQ_SMALL_ALLOC_BUFSIZE,
.rxd_ring[0].entries = RXDQ_SMALL_ENTRIES,
.rxd_ring[0].id = 8,
@@ -126,7 +126,7 @@
2,.rxc_intr_id = 2
};

-struct vnic_prov_def vnic_set_3 = {
+static struct vnic_prov_def vnic_set_3 = {
.rxd_ring[0].buf_size = RXDQ_SMALL_ALLOC_BUFSIZE,
.rxd_ring[0].entries = RXDQ_SMALL_ENTRIES,
.rxd_ring[0].id = 12,
@@ -143,6 +143,7 @@
3,.rxc_intr_id = 3
};

+#if 0
struct vnic_prov_def vnic_set_sim = {
.rxd_ring[0].buf_size = RXDQ_STD_ALLOC_BUFSIZE,
.rxd_ring[0].entries = 256,
@@ -158,8 +159,9 @@
.rxd_ring[2].state = 1,
.tx_entries = 256,.rxc_entries = 256 * 3,.rxc_id = 0,.rxc_intr_id = 0
};
+#endif /* 0 */

-struct vnic_prov_def *vnic_prov_pmm_pin_irq[VIOC_MAX_VNICS] = {
+static struct vnic_prov_def *vnic_prov_pmm_pin_irq[VIOC_MAX_VNICS] = {
&vnic_set_0,
&vnic_set_1,
&vnic_set_0,
@@ -178,7 +180,7 @@
&vnic_set_1
};

-struct vnic_prov_def *vnic_prov_pmm_msi_x[VIOC_MAX_VNICS] = {
+static struct vnic_prov_def *vnic_prov_pmm_msi_x[VIOC_MAX_VNICS] = {
&vnic_set_0,
&vnic_set_1,
&vnic_set_2,
@@ -197,6 +199,7 @@
&vnic_set_3
};

+#if 0
struct vnic_prov_def *vnic_prov_sim[VIOC_MAX_VNICS] = {
&vnic_set_sim,
&vnic_set_sim,
@@ -215,6 +218,7 @@
&vnic_set_sim,
&vnic_set_sim
};
+#endif /* 0 */

struct vnic_prov_def **vioc_prov_get(int num_rx_irq)
{
--- linux-2.6.20-mm1/drivers/net/vioc/vioc_receive.c.old 2007-02-18 01:34:23.000000000 +0100
+++ linux-2.6.20-mm1/drivers/net/vioc/vioc_receive.c 2007-02-18 01:34:30.000000000 +0100
@@ -58,7 +58,7 @@
* one RxSet, no locking is needed on RxDQs or RxCQs.
* Return true if we got a packet, false if the queue is empty.
*/
-int vioc_rx_pkt(struct vioc_device *viocdev, struct rxc *rxc, u32 sw_idx)
+static int vioc_rx_pkt(struct vioc_device *viocdev, struct rxc *rxc, u32 sw_idx)
{
u32 rx_status;
u32 vnic_id;

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/