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authorHerbert Xu <herbert@lithui.me.apana.org.au>2017-12-22 20:00:50 +1100
committerHerbert Xu <herbert@lithui.me.apana.org.au>2017-12-22 20:00:50 +1100
commit45fa9a324d0f5be9140ba2e0db9b8fb8a0b9b7e8 (patch)
treea5e7c8428030ec0462b58133d6548ddff3802018 /drivers/scsi/scsi_lib.c
parentfc8517bf627c9b834f80274a1bc9ecd39b27231b (diff)
parent2973633e9f09311e849f975d969737af81a521ff (diff)
downloadtalos-op-linux-45fa9a324d0f5be9140ba2e0db9b8fb8a0b9b7e8.tar.gz
talos-op-linux-45fa9a324d0f5be9140ba2e0db9b8fb8a0b9b7e8.zip
Merge git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Merge the crypto tree to pick up inside-secure fixes.
Diffstat (limited to 'drivers/scsi/scsi_lib.c')
-rw-r--r--drivers/scsi/scsi_lib.c10
1 files changed, 6 insertions, 4 deletions
diff --git a/drivers/scsi/scsi_lib.c b/drivers/scsi/scsi_lib.c
index 1cbc497e00bd..00742c50cd44 100644
--- a/drivers/scsi/scsi_lib.c
+++ b/drivers/scsi/scsi_lib.c
@@ -2148,11 +2148,13 @@ void __scsi_init_queue(struct Scsi_Host *shost, struct request_queue *q)
q->limits.cluster = 0;
/*
- * set a reasonable default alignment on word boundaries: the
- * host and device may alter it using
- * blk_queue_update_dma_alignment() later.
+ * Set a reasonable default alignment: The larger of 32-byte (dword),
+ * which is a common minimum for HBAs, and the minimum DMA alignment,
+ * which is set by the platform.
+ *
+ * Devices that require a bigger alignment can increase it later.
*/
- blk_queue_dma_alignment(q, 0x03);
+ blk_queue_dma_alignment(q, max(4, dma_get_cache_alignment()) - 1);
}
EXPORT_SYMBOL_GPL(__scsi_init_queue);
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