[kees:kspp/array-bounds/next-20210816/v1 9/10] drivers/scsi/megaraid.c:211:13: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'u8[15]' {aka 'unsigned char[15]'}

From: kernel test robot
Date: Wed Aug 18 2021 - 08:47:47 EST

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tree: https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git kspp/array-bounds/next-20210816/v1
head: b07d5e8190ca172b1ffddd1412b921296000b379
commit: ecc23a9ee765008e439113eea38fb1cbbd3d7c83 [9/10] Makefile: Enable -Warray-bounds
config: arc-randconfig-r043-20210818 (attached as .config)
compiler: arceb-elf-gcc (GCC) 11.2.0
reproduce (this is a W=1 build):
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git/commit/?id=ecc23a9ee765008e439113eea38fb1cbbd3d7c83
git remote add kees https://git.kernel.org/pub/scm/linux/kernel/git/kees/linux.git
git fetch --no-tags kees kspp/array-bounds/next-20210816/v1
git checkout ecc23a9ee765008e439113eea38fb1cbbd3d7c83
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross ARCH=arc

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>

All warnings (new ones prefixed by >>):

drivers/scsi/megaraid.c: In function 'mega_query_adapter':
>> drivers/scsi/megaraid.c:211:13: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'u8[15]' {aka 'unsigned char[15]'} [-Warray-bounds]
211 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ^~
drivers/scsi/megaraid.c:195:17: note: while referencing 'raw_mbox'
195 | u8 raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:265:21: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'u8[15]' {aka 'unsigned char[15]'} [-Warray-bounds]
265 | mbox->m_out.xferaddr = prod_info_dma_handle;
| ^~
drivers/scsi/megaraid.c:195:17: note: while referencing 'raw_mbox'
195 | u8 raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:235:21: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'u8[15]' {aka 'unsigned char[15]'} [-Warray-bounds]
235 | mbox->m_out.xferaddr = (u32)dma_handle;
| ^~
drivers/scsi/megaraid.c:195:17: note: while referencing 'raw_mbox'
195 | u8 raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:238:21: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'u8[15]' {aka 'unsigned char[15]'} [-Warray-bounds]
238 | mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ;
| ^~
drivers/scsi/megaraid.c:195:17: note: while referencing 'raw_mbox'
195 | u8 raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
>> drivers/scsi/megaraid.c:3881:30: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'unsigned char[15]' [-Warray-bounds]
3881 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/megaraid.c:3872:25: note: while referencing 'raw_mbox'
3872 | unsigned char raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c: In function 'megaraid_probe_one':
drivers/scsi/megaraid.c:3585:30: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'unsigned char[15]' [-Warray-bounds]
3585 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/megaraid.c:3576:25: note: while referencing 'raw_mbox'
3576 | unsigned char raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:3623:30: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'unsigned char[15]' [-Warray-bounds]
3623 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/megaraid.c:3607:23: note: while referencing 'raw_mbox'
3607 | unsigned char raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:3678:30: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'unsigned char[15]' [-Warray-bounds]
3678 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/megaraid.c:3662:25: note: while referencing 'raw_mbox'
3662 | unsigned char raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
drivers/scsi/megaraid.c:3926:30: warning: array subscript 'mbox_t[0]' is partly outside array bounds of 'unsigned char[15]' [-Warray-bounds]
3926 | mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
| ~~~~~~~~~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/megaraid.c:3917:25: note: while referencing 'raw_mbox'
3917 | unsigned char raw_mbox[sizeof(struct mbox_out)];
| ^~~~~~~~
--
drivers/thunderbolt/xdomain.c: In function 'tb_xdomain_properties_changed':
>> drivers/thunderbolt/xdomain.c:226:22: warning: array subscript 'const struct tb_xdp_error_response[0]' is partly outside array bounds of 'struct tb_xdp_properties_changed_response[1]' [-Warray-bounds]
226 | switch (error->error) {
| ~~~~~^~~~~~~
drivers/thunderbolt/xdomain.c:448:51: note: while referencing 'res'
448 | struct tb_xdp_properties_changed_response res;
| ^~~
--
drivers/gpu/drm/drm_dp_helper.c: In function 'drm_dp_get_adjust_request_post_cursor':
>> drivers/gpu/drm/drm_dp_helper.c:59:27: warning: array subscript 10 is outside array bounds of 'const u8[6]' {aka 'const unsigned char[6]'} [-Warray-bounds]
59 | return link_status[r - DP_LANE0_1_STATUS];
| ~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/drm_dp_helper.c:133:51: note: while referencing 'link_status'
133 | u8 drm_dp_get_adjust_request_post_cursor(const u8 link_status[DP_LINK_STATUS_SIZE],
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/drm_dp_helper.c: In function 'drm_dp_pcon_dsc_bpp_incr':
drivers/gpu/drm/drm_dp_helper.c:2981:28: warning: array subscript 12 is outside array bounds of 'const u8[12]' {aka 'const unsigned char[12]'} [-Warray-bounds]
2981 | buf = pcon_dsc_dpcd[DP_PCON_DSC_BPP_INCR - DP_PCON_DSC_ENCODER];
| ~~~~~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/gpu/drm/drm_dp_helper.c:2977:39: note: while referencing 'pcon_dsc_dpcd'
2977 | int drm_dp_pcon_dsc_bpp_incr(const u8 pcon_dsc_dpcd[DP_PCON_DSC_ENCODER_CAP_SIZE])
| ~~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
--
In file included from net/mac80211/tx.c:15:
net/mac80211/tx.c: In function 'ieee80211_xmit_fast':
>> include/linux/skbuff.h:2048:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct ieee80211_tx_data[1]' [-Warray-bounds]
2048 | __skb_insert(newsk, next->prev, next, list);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/mac80211/tx.c:3506:34: note: while referencing 'tx'
3506 | struct ieee80211_tx_data tx;
| ^~
--
In file included from include/linux/if_ether.h:19,
from net/mac80211/ieee80211_i.h:16,
from net/mac80211/mesh.h:13,
from net/mac80211/mesh_ps.c:7:
net/mac80211/mesh_ps.c: In function 'mps_frame_deliver':
>> include/linux/skbuff.h:2048:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct sk_buff_head[1]' [-Warray-bounds]
2048 | __skb_insert(newsk, next->prev, next, list);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/mac80211/mesh_ps.c:454:29: note: while referencing 'frames'
454 | struct sk_buff_head frames;
| ^~~~~~
In file included from include/linux/if_ether.h:19,
from net/mac80211/ieee80211_i.h:16,
from net/mac80211/mesh.h:13,
from net/mac80211/mesh_ps.c:7:
>> include/linux/skbuff.h:2048:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct sk_buff_head[1]' [-Warray-bounds]
2048 | __skb_insert(newsk, next->prev, next, list);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/mac80211/mesh_ps.c:454:29: note: while referencing 'frames'
454 | struct sk_buff_head frames;
| ^~~~~~
--
In file included from include/linux/if_ether.h:19,
from include/linux/etherdevice.h:20,
from net/mac80211/sta_info.c:12:
net/mac80211/sta_info.c: In function 'ieee80211_sta_ps_deliver_response':
>> include/linux/skbuff.h:2048:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct sk_buff_head[1]' [-Warray-bounds]
2048 | __skb_insert(newsk, next->prev, next, list);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/mac80211/sta_info.c:1577:29: note: while referencing 'frames'
1577 | struct sk_buff_head frames;
| ^~~~~~
In file included from include/linux/if_ether.h:19,
from include/linux/etherdevice.h:20,
from net/mac80211/sta_info.c:12:
>> include/linux/skbuff.h:2048:9: warning: array subscript 'struct sk_buff[0]' is partly outside array bounds of 'struct sk_buff_head[1]' [-Warray-bounds]
2048 | __skb_insert(newsk, next->prev, next, list);
| ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
net/mac80211/sta_info.c:1620:37: note: while referencing 'pending'
1620 | struct sk_buff_head pending;
| ^~~~~~~

vim +211 drivers/scsi/megaraid.c

^1da177e4c3f41 Linus Torvalds 2005-04-16 181
^1da177e4c3f41 Linus Torvalds 2005-04-16 182
^1da177e4c3f41 Linus Torvalds 2005-04-16 183 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 184 * mega_query_adapter()
^1da177e4c3f41 Linus Torvalds 2005-04-16 185 * @adapter - pointer to our soft state
^1da177e4c3f41 Linus Torvalds 2005-04-16 186 *
^1da177e4c3f41 Linus Torvalds 2005-04-16 187 * Issue the adapter inquiry commands to the controller and find out
^1da177e4c3f41 Linus Torvalds 2005-04-16 188 * information and parameter about the devices attached
^1da177e4c3f41 Linus Torvalds 2005-04-16 189 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 190 static int
^1da177e4c3f41 Linus Torvalds 2005-04-16 191 mega_query_adapter(adapter_t *adapter)
^1da177e4c3f41 Linus Torvalds 2005-04-16 192 {
^1da177e4c3f41 Linus Torvalds 2005-04-16 193 dma_addr_t prod_info_dma_handle;
^1da177e4c3f41 Linus Torvalds 2005-04-16 194 mega_inquiry3 *inquiry3;
^1da177e4c3f41 Linus Torvalds 2005-04-16 195 u8 raw_mbox[sizeof(struct mbox_out)];
^1da177e4c3f41 Linus Torvalds 2005-04-16 196 mbox_t *mbox;
^1da177e4c3f41 Linus Torvalds 2005-04-16 197 int retval;
^1da177e4c3f41 Linus Torvalds 2005-04-16 198
^1da177e4c3f41 Linus Torvalds 2005-04-16 199 /* Initialize adapter inquiry mailbox */
^1da177e4c3f41 Linus Torvalds 2005-04-16 200
^1da177e4c3f41 Linus Torvalds 2005-04-16 201 mbox = (mbox_t *)raw_mbox;
^1da177e4c3f41 Linus Torvalds 2005-04-16 202
^1da177e4c3f41 Linus Torvalds 2005-04-16 203 memset((void *)adapter->mega_buffer, 0, MEGA_BUFFER_SIZE);
^1da177e4c3f41 Linus Torvalds 2005-04-16 204 memset(&mbox->m_out, 0, sizeof(raw_mbox));
^1da177e4c3f41 Linus Torvalds 2005-04-16 205
^1da177e4c3f41 Linus Torvalds 2005-04-16 206 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 207 * Try to issue Inquiry3 command
^1da177e4c3f41 Linus Torvalds 2005-04-16 208 * if not succeeded, then issue MEGA_MBOXCMD_ADAPTERINQ command and
^1da177e4c3f41 Linus Torvalds 2005-04-16 209 * update enquiry3 structure
^1da177e4c3f41 Linus Torvalds 2005-04-16 210 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 @211 mbox->m_out.xferaddr = (u32)adapter->buf_dma_handle;
^1da177e4c3f41 Linus Torvalds 2005-04-16 212
^1da177e4c3f41 Linus Torvalds 2005-04-16 213 inquiry3 = (mega_inquiry3 *)adapter->mega_buffer;
^1da177e4c3f41 Linus Torvalds 2005-04-16 214
^1da177e4c3f41 Linus Torvalds 2005-04-16 215 raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 216 raw_mbox[2] = NC_SUBOP_ENQUIRY3; /* i.e. 0x0F */
^1da177e4c3f41 Linus Torvalds 2005-04-16 217 raw_mbox[3] = ENQ3_GET_SOLICITED_FULL; /* i.e. 0x02 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 218
^1da177e4c3f41 Linus Torvalds 2005-04-16 219 /* Issue a blocking command to the card */
^1da177e4c3f41 Linus Torvalds 2005-04-16 220 if ((retval = issue_scb_block(adapter, raw_mbox))) {
^1da177e4c3f41 Linus Torvalds 2005-04-16 221 /* the adapter does not support 40ld */
^1da177e4c3f41 Linus Torvalds 2005-04-16 222
^1da177e4c3f41 Linus Torvalds 2005-04-16 223 mraid_ext_inquiry *ext_inq;
^1da177e4c3f41 Linus Torvalds 2005-04-16 224 mraid_inquiry *inq;
^1da177e4c3f41 Linus Torvalds 2005-04-16 225 dma_addr_t dma_handle;
^1da177e4c3f41 Linus Torvalds 2005-04-16 226
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 227 ext_inq = dma_alloc_coherent(&adapter->dev->dev,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 228 sizeof(mraid_ext_inquiry),
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 229 &dma_handle, GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds 2005-04-16 230
^1da177e4c3f41 Linus Torvalds 2005-04-16 231 if( ext_inq == NULL ) return -1;
^1da177e4c3f41 Linus Torvalds 2005-04-16 232
^1da177e4c3f41 Linus Torvalds 2005-04-16 233 inq = &ext_inq->raid_inq;
^1da177e4c3f41 Linus Torvalds 2005-04-16 234
^1da177e4c3f41 Linus Torvalds 2005-04-16 235 mbox->m_out.xferaddr = (u32)dma_handle;
^1da177e4c3f41 Linus Torvalds 2005-04-16 236
^1da177e4c3f41 Linus Torvalds 2005-04-16 237 /*issue old 0x04 command to adapter */
^1da177e4c3f41 Linus Torvalds 2005-04-16 238 mbox->m_out.cmd = MEGA_MBOXCMD_ADPEXTINQ;
^1da177e4c3f41 Linus Torvalds 2005-04-16 239
^1da177e4c3f41 Linus Torvalds 2005-04-16 240 issue_scb_block(adapter, raw_mbox);
^1da177e4c3f41 Linus Torvalds 2005-04-16 241
^1da177e4c3f41 Linus Torvalds 2005-04-16 242 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 243 * update Enquiry3 and ProductInfo structures with
^1da177e4c3f41 Linus Torvalds 2005-04-16 244 * mraid_inquiry structure
^1da177e4c3f41 Linus Torvalds 2005-04-16 245 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 246 mega_8_to_40ld(inq, inquiry3,
^1da177e4c3f41 Linus Torvalds 2005-04-16 247 (mega_product_info *)&adapter->product_info);
^1da177e4c3f41 Linus Torvalds 2005-04-16 248
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 249 dma_free_coherent(&adapter->dev->dev,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 250 sizeof(mraid_ext_inquiry), ext_inq,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 251 dma_handle);
^1da177e4c3f41 Linus Torvalds 2005-04-16 252
^1da177e4c3f41 Linus Torvalds 2005-04-16 253 } else { /*adapter supports 40ld */
^1da177e4c3f41 Linus Torvalds 2005-04-16 254 adapter->flag |= BOARD_40LD;
^1da177e4c3f41 Linus Torvalds 2005-04-16 255
^1da177e4c3f41 Linus Torvalds 2005-04-16 256 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 257 * get product_info, which is static information and will be
^1da177e4c3f41 Linus Torvalds 2005-04-16 258 * unchanged
^1da177e4c3f41 Linus Torvalds 2005-04-16 259 */
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 260 prod_info_dma_handle = dma_map_single(&adapter->dev->dev,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 261 (void *)&adapter->product_info,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 262 sizeof(mega_product_info),
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 263 DMA_FROM_DEVICE);
^1da177e4c3f41 Linus Torvalds 2005-04-16 264
^1da177e4c3f41 Linus Torvalds 2005-04-16 265 mbox->m_out.xferaddr = prod_info_dma_handle;
^1da177e4c3f41 Linus Torvalds 2005-04-16 266
^1da177e4c3f41 Linus Torvalds 2005-04-16 267 raw_mbox[0] = FC_NEW_CONFIG; /* i.e. mbox->cmd=0xA1 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 268 raw_mbox[2] = NC_SUBOP_PRODUCT_INFO; /* i.e. 0x0E */
^1da177e4c3f41 Linus Torvalds 2005-04-16 269
^1da177e4c3f41 Linus Torvalds 2005-04-16 270 if ((retval = issue_scb_block(adapter, raw_mbox)))
3b8a1ba378b750 Bjorn Helgaas 2015-07-07 271 dev_warn(&adapter->dev->dev,
3b8a1ba378b750 Bjorn Helgaas 2015-07-07 272 "Product_info cmd failed with error: %d\n",
^1da177e4c3f41 Linus Torvalds 2005-04-16 273 retval);
^1da177e4c3f41 Linus Torvalds 2005-04-16 274
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 275 dma_unmap_single(&adapter->dev->dev, prod_info_dma_handle,
ec090ef8cd1c23 Suraj Upadhyay 2020-07-29 276 sizeof(mega_product_info), DMA_FROM_DEVICE);
^1da177e4c3f41 Linus Torvalds 2005-04-16 277 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 278
^1da177e4c3f41 Linus Torvalds 2005-04-16 279
^1da177e4c3f41 Linus Torvalds 2005-04-16 280 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 281 * kernel scans the channels from 0 to <= max_channel
^1da177e4c3f41 Linus Torvalds 2005-04-16 282 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 283 adapter->host->max_channel =
^1da177e4c3f41 Linus Torvalds 2005-04-16 284 adapter->product_info.nchannels + NVIRT_CHAN -1;
^1da177e4c3f41 Linus Torvalds 2005-04-16 285
^1da177e4c3f41 Linus Torvalds 2005-04-16 286 adapter->host->max_id = 16; /* max targets per channel */
^1da177e4c3f41 Linus Torvalds 2005-04-16 287
^1da177e4c3f41 Linus Torvalds 2005-04-16 288 adapter->host->max_lun = 7; /* Up to 7 luns for non disk devices */
^1da177e4c3f41 Linus Torvalds 2005-04-16 289
^1da177e4c3f41 Linus Torvalds 2005-04-16 290 adapter->host->cmd_per_lun = max_cmd_per_lun;
^1da177e4c3f41 Linus Torvalds 2005-04-16 291
^1da177e4c3f41 Linus Torvalds 2005-04-16 292 adapter->numldrv = inquiry3->num_ldrv;
^1da177e4c3f41 Linus Torvalds 2005-04-16 293
^1da177e4c3f41 Linus Torvalds 2005-04-16 294 adapter->max_cmds = adapter->product_info.max_commands;
^1da177e4c3f41 Linus Torvalds 2005-04-16 295
^1da177e4c3f41 Linus Torvalds 2005-04-16 296 if(adapter->max_cmds > MAX_COMMANDS)
^1da177e4c3f41 Linus Torvalds 2005-04-16 297 adapter->max_cmds = MAX_COMMANDS;
^1da177e4c3f41 Linus Torvalds 2005-04-16 298
^1da177e4c3f41 Linus Torvalds 2005-04-16 299 adapter->host->can_queue = adapter->max_cmds - 1;
^1da177e4c3f41 Linus Torvalds 2005-04-16 300
^1da177e4c3f41 Linus Torvalds 2005-04-16 301 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 302 * Get the maximum number of scatter-gather elements supported by this
^1da177e4c3f41 Linus Torvalds 2005-04-16 303 * firmware
^1da177e4c3f41 Linus Torvalds 2005-04-16 304 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 305 mega_get_max_sgl(adapter);
^1da177e4c3f41 Linus Torvalds 2005-04-16 306
^1da177e4c3f41 Linus Torvalds 2005-04-16 307 adapter->host->sg_tablesize = adapter->sglen;
^1da177e4c3f41 Linus Torvalds 2005-04-16 308
124dd90f6525ee Adam Radford 2012-01-10 309 /* use HP firmware and bios version encoding
124dd90f6525ee Adam Radford 2012-01-10 310 Note: fw_version[0|1] and bios_version[0|1] were originally shifted
124dd90f6525ee Adam Radford 2012-01-10 311 right 8 bits making them zero. This 0 value was hardcoded to fix
124dd90f6525ee Adam Radford 2012-01-10 312 sparse warnings. */
54ebfd57813ada Jon Mason 2012-07-10 313 if (adapter->product_info.subsysvid == PCI_VENDOR_ID_HP) {
875826a71c8b5e Arnd Bergmann 2017-07-14 314 snprintf(adapter->fw_version, sizeof(adapter->fw_version),
875826a71c8b5e Arnd Bergmann 2017-07-14 315 "%c%d%d.%d%d",
^1da177e4c3f41 Linus Torvalds 2005-04-16 316 adapter->product_info.fw_version[2],
124dd90f6525ee Adam Radford 2012-01-10 317 0,
^1da177e4c3f41 Linus Torvalds 2005-04-16 318 adapter->product_info.fw_version[1] & 0x0f,
124dd90f6525ee Adam Radford 2012-01-10 319 0,
^1da177e4c3f41 Linus Torvalds 2005-04-16 320 adapter->product_info.fw_version[0] & 0x0f);
875826a71c8b5e Arnd Bergmann 2017-07-14 321 snprintf(adapter->bios_version, sizeof(adapter->fw_version),
875826a71c8b5e Arnd Bergmann 2017-07-14 322 "%c%d%d.%d%d",
^1da177e4c3f41 Linus Torvalds 2005-04-16 323 adapter->product_info.bios_version[2],
124dd90f6525ee Adam Radford 2012-01-10 324 0,
^1da177e4c3f41 Linus Torvalds 2005-04-16 325 adapter->product_info.bios_version[1] & 0x0f,
124dd90f6525ee Adam Radford 2012-01-10 326 0,
^1da177e4c3f41 Linus Torvalds 2005-04-16 327 adapter->product_info.bios_version[0] & 0x0f);
^1da177e4c3f41 Linus Torvalds 2005-04-16 328 } else {
^1da177e4c3f41 Linus Torvalds 2005-04-16 329 memcpy(adapter->fw_version,
^1da177e4c3f41 Linus Torvalds 2005-04-16 330 (char *)adapter->product_info.fw_version, 4);
^1da177e4c3f41 Linus Torvalds 2005-04-16 331 adapter->fw_version[4] = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 332
^1da177e4c3f41 Linus Torvalds 2005-04-16 333 memcpy(adapter->bios_version,
^1da177e4c3f41 Linus Torvalds 2005-04-16 334 (char *)adapter->product_info.bios_version, 4);
^1da177e4c3f41 Linus Torvalds 2005-04-16 335
^1da177e4c3f41 Linus Torvalds 2005-04-16 336 adapter->bios_version[4] = 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 337 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 338
3b8a1ba378b750 Bjorn Helgaas 2015-07-07 339 dev_notice(&adapter->dev->dev, "[%s:%s] detected %d logical drives\n",
^1da177e4c3f41 Linus Torvalds 2005-04-16 340 adapter->fw_version, adapter->bios_version, adapter->numldrv);
^1da177e4c3f41 Linus Torvalds 2005-04-16 341
^1da177e4c3f41 Linus Torvalds 2005-04-16 342 /*
^1da177e4c3f41 Linus Torvalds 2005-04-16 343 * Do we support extended (>10 bytes) cdbs
^1da177e4c3f41 Linus Torvalds 2005-04-16 344 */
^1da177e4c3f41 Linus Torvalds 2005-04-16 345 adapter->support_ext_cdb = mega_support_ext_cdb(adapter);
^1da177e4c3f41 Linus Torvalds 2005-04-16 346 if (adapter->support_ext_cdb)
3b8a1ba378b750 Bjorn Helgaas 2015-07-07 347 dev_notice(&adapter->dev->dev, "supports extended CDBs\n");
^1da177e4c3f41 Linus Torvalds 2005-04-16 348
^1da177e4c3f41 Linus Torvalds 2005-04-16 349
^1da177e4c3f41 Linus Torvalds 2005-04-16 350 return 0;
^1da177e4c3f41 Linus Torvalds 2005-04-16 351 }
^1da177e4c3f41 Linus Torvalds 2005-04-16 352

:::::: The code at line 211 was first introduced by commit
:::::: 1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 Linux-2.6.12-rc2

:::::: TO: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>
:::::: CC: Linus Torvalds <torvalds@xxxxxxxxxxxxxxx>

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