diff mbox series

[v3,12/13] drivers/md: Use ARCH_DMA_MINALIGN instead of ARCH_KMALLOC_MINALIGN

Message ID 20221106220143.2129263-13-catalin.marinas@arm.com (mailing list archive)
State New, archived
Headers show
Series mm, dma, arm64: Reduce ARCH_KMALLOC_MINALIGN to 8 | expand

Commit Message

Catalin Marinas Nov. 6, 2022, 10:01 p.m. UTC 
ARCH_DMA_MINALIGN represents the minimum (static) alignment for safe DMA
operations while ARCH_KMALLOC_MINALIGN is the minimum kmalloc() objects
alignment.

Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Alasdair Kergon <agk@redhat.com>
Cc: Mike Snitzer <snitzer@kernel.org>
---

This is somewhat related to the previous crypto patch. The dm_crypt_io
structure is supposed to be CRYPTO_MINALIGN-aligned.

 drivers/md/dm-crypt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff mbox series

Patch

diff --git a/drivers/md/dm-crypt.c b/drivers/md/dm-crypt.c
index 159c6806c19b..4f1bd5b348c3 100644
--- a/drivers/md/dm-crypt.c
+++ b/drivers/md/dm-crypt.c
@@ -3250,7 +3250,7 @@  static int crypt_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 
 	cc->per_bio_data_size = ti->per_io_data_size =
 		ALIGN(sizeof(struct dm_crypt_io) + cc->dmreq_start + additional_req_size,
-		      ARCH_KMALLOC_MINALIGN);
+		      ARCH_DMA_MINALIGN);
 
 	ret = mempool_init(&cc->page_pool, BIO_MAX_VECS, crypt_page_alloc, crypt_page_free, cc);
 	if (ret) {