diff options
| author | Stefan Agner <stefan.agner@toradex.com> | 2017-08-23 09:46:17 -0700 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-08-26 14:56:15 -0400 |
| commit | 5c27535dc9a0a4858cb3efad2400ffe83c678441 (patch) | |
| tree | 679c069cf84f14e92ff8a2e5b75c092ae94cfd4b /disk | |
| parent | 527d86558eb45edd1543e38d77cd1e1f09936ec1 (diff) | |
disk: part: align buffer so it can be used with DMA enabled drivers
When using ISO partitions with a DMA enabled block device driver
reading the ISO partition leads to unaligned DMA operations:
CACHE: Misaligned operation at range [bffb7da8, bffb85a8]
Align the buffer to make sure we pass a buffer which works for
DMA operations.
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
Reviewed-by: Bin Meng <bmeng.cn@gmail.com>
Diffstat (limited to 'disk')
| -rw-r--r-- | disk/part_iso.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/disk/part_iso.c b/disk/part_iso.c index bb8ed658f2..8aef251f4e 100644 --- a/disk/part_iso.c +++ b/disk/part_iso.c @@ -24,7 +24,7 @@ #undef CHECK_FOR_POWERPC_PLATTFORM #define CD_SECTSIZE 2048 -static unsigned char tmpbuf[CD_SECTSIZE]; +static unsigned char tmpbuf[CD_SECTSIZE] __aligned(ARCH_DMA_MINALIGN); unsigned long iso_dread(struct blk_desc *block_dev, lbaint_t start, lbaint_t blkcnt, void *buffer) |