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USB: Align buffers at cacheline

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This avoids cache-alignment warnings shown in console
when a usb command is entered.

Whenever X bytes of unaligned buffer is invalidated, arm core
invalidates X + Y bytes as per the cache line size and throws
these warnings.

Signed-off-by: Puneet Saxena <puneets@nvidia.com>
Signed-off-by: Marek Vasut <marex@denx.de>
This commit is contained in:
Puneet Saxena
2012-04-03 14:56:06 +05:30
committed by Marek Vasut
parent 66cf64107b
commit f57661394a
6 changed files with 61 additions and 58 deletions
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4
include/scsi.h
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@@ -26,7 +26,9 @@
typedef struct SCSI_cmd_block{
unsigned char cmd[16]; /* command */
unsigned char sense_buf[64]; /* for request sense */
/* for request sense */
unsigned char sense_buf[64]
__attribute__((aligned(ARCH_DMA_MINALIGN)));
unsigned char status; /* SCSI Status */
unsigned char target; /* Target ID */
unsigned char lun; /* Target LUN */