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usb: Optimize USB storage read/write 

Trim down the IO times by removing uneeded
test unit reeady calls.

Signed-off-by: Jim Shimer <mgi2475@motorola.com>
This commit is contained in:
Jim Shimer 2012-07-30 22:11:28 -04:00 committed by Marek Vasut
parent db19134615
commit b7006958ea
1 changed files with 0 additions and 12 deletions
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12
common/usb_storage.c
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@ -1083,12 +1083,6 @@ unsigned long usb_stor_read(int device, unsigned long blknr,
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
if (usb_test_unit_ready(srb, ss)) {
printf("Device NOT ready\n Request Sense returned %02X %02X"
" %02X\n", srb->sense_buf[2], srb->sense_buf[12],
srb->sense_buf[13]);
return 0;
}
USB_STOR_PRINTF("\nusb_read: dev %d startblk %lx, blccnt %lx"
" buffer %lx\n", device, start, blks, buf_addr);
@ -1161,12 +1155,6 @@ unsigned long usb_stor_write(int device, unsigned long blknr,
buf_addr = (unsigned long)buffer;
start = blknr;
blks = blkcnt;
if (usb_test_unit_ready(srb, ss)) {
printf("Device NOT ready\n Request Sense returned %02X %02X"
" %02X\n", srb->sense_buf[2], srb->sense_buf[12],
srb->sense_buf[13]);
return 0;
}
USB_STOR_PRINTF("\nusb_write: dev %d startblk %lx, blccnt %lx"
" buffer %lx\n", device, start, blks, buf_addr);