This is a note to let you know that I've just added the patch titled

scsi: dma-mapping: always provide dma_get_cache_alignment

to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...

The filename of the patch is: scsi-dma-mapping-always-provide-dma_get_cache_alignment.patch and it can be found in the queue-4.14 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let stable@vger.kernel.org know about it.

From 860dd4424f344400b491b212ee4acb3a358ba9d9 Mon Sep 17 00:00:00 2001

From: Christoph Hellwig hch@lst.de Date: Tue, 21 Nov 2017 14:23:37 +0100 Subject: scsi: dma-mapping: always provide dma_get_cache_alignment

From: Christoph Hellwig hch@lst.de

commit 860dd4424f344400b491b212ee4acb3a358ba9d9 upstream.

Provide the dummy version of dma_get_cache_alignment that always returns 1 even if CONFIG_HAS_DMA is not set, so that drivers and subsystems can use it without ifdefs.

Signed-off-by: Christoph Hellwig hch@lst.de Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org

--- include/linux/dma-mapping.h | 2 -- 1 file changed, 2 deletions(-)

--- a/include/linux/dma-mapping.h +++ b/include/linux/dma-mapping.h @@ -697,7 +697,6 @@ static inline void *dma_zalloc_coherent( return ret; }

-#ifdef CONFIG_HAS_DMA static inline int dma_get_cache_alignment(void) { #ifdef ARCH_DMA_MINALIGN @@ -705,7 +704,6 @@ static inline int dma_get_cache_alignmen #endif return 1; } -#endif

/* flags for the coherent memory api */ #define DMA_MEMORY_EXCLUSIVE 0x01

Patches currently in stable-queue which might be from hch@lst.de are

queue-4.14/scsi-use-dma_get_cache_alignment-as-minimum-dma-alignment.patch queue-4.14/scsi-dma-mapping-always-provide-dma_get_cache_alignment.patch queue-4.14/scsi-libsas-align-sata_device-s-rps_resp-on-a-cacheline.patch