[SCSI] aacraid: General driver cleanup
Received from Mark Salyzyn
Remove superfluous code, optimize code, harden code, cast code, correct
some text, use msleep instead of schedule_timeout_interruptible. No
bugs.
Signed-off-by: Mark Haverkamp <markh@osdl.org>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
diff --git a/drivers/scsi/aacraid/aachba.c b/drivers/scsi/aacraid/aachba.c
index 31319d0..fb8350e 100644
--- a/drivers/scsi/aacraid/aachba.c
+++ b/drivers/scsi/aacraid/aachba.c
@@ -1607,13 +1607,14 @@
cp[11] = 0;
cp[12] = 0;
aac_internal_transfer(scsicmd, cp, 0,
- min((unsigned int)scsicmd->cmnd[13], sizeof(cp)));
+ min_t(size_t, scsicmd->cmnd[13], sizeof(cp)));
if (sizeof(cp) < scsicmd->cmnd[13]) {
unsigned int len, offset = sizeof(cp);
memset(cp, 0, offset);
do {
- len = min(scsicmd->cmnd[13]-offset, sizeof(cp));
+ len = min_t(size_t, scsicmd->cmnd[13] - offset,
+ sizeof(cp));
aac_internal_transfer(scsicmd, cp, offset, len);
} while ((offset += len) < scsicmd->cmnd[13]);
}
@@ -2080,7 +2081,6 @@
return 0;
}
- dev = (struct aac_dev *)scsicmd->device->host->hostdata;
switch(scsicmd->sc_data_direction){
case DMA_TO_DEVICE:
flag = SRB_DataOut;
@@ -2198,8 +2198,6 @@
scsicmd->sc_data_direction);
psg->count = cpu_to_le32(sg_count);
- byte_count = 0;
-
for (i = 0; i < sg_count; i++) {
psg->sg[i].addr = cpu_to_le32(sg_dma_address(sg));
psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
@@ -2255,18 +2253,17 @@
sg_count = pci_map_sg(dev->pdev, sg, scsicmd->use_sg,
scsicmd->sc_data_direction);
- psg->count = cpu_to_le32(sg_count);
-
- byte_count = 0;
for (i = 0; i < sg_count; i++) {
+ int count = sg_dma_len(sg);
addr = sg_dma_address(sg);
psg->sg[i].addr[0] = cpu_to_le32(addr & 0xffffffff);
psg->sg[i].addr[1] = cpu_to_le32(addr>>32);
- psg->sg[i].count = cpu_to_le32(sg_dma_len(sg));
- byte_count += sg_dma_len(sg);
+ psg->sg[i].count = cpu_to_le32(count);
+ byte_count += count;
sg++;
}
+ psg->count = cpu_to_le32(sg_count);
/* hba wants the size to be exact */
if(byte_count > scsicmd->request_bufflen){
u32 temp = le32_to_cpu(psg->sg[i-1].count) -
@@ -2281,16 +2278,15 @@
}
}
else if(scsicmd->request_bufflen) {
- u64 addr;
- addr = pci_map_single(dev->pdev,
+ scsicmd->SCp.dma_handle = pci_map_single(dev->pdev,
scsicmd->request_buffer,
scsicmd->request_bufflen,
scsicmd->sc_data_direction);
+ addr = scsicmd->SCp.dma_handle;
psg->count = cpu_to_le32(1);
psg->sg[0].addr[0] = cpu_to_le32(addr & 0xffffffff);
psg->sg[0].addr[1] = cpu_to_le32(addr >> 32);
psg->sg[0].count = cpu_to_le32(scsicmd->request_bufflen);
- scsicmd->SCp.dma_handle = addr;
byte_count = scsicmd->request_bufflen;
}
return byte_count;