From mboxrd@z Thu Jan 1 00:00:00 1970 From: "John W. Linville" Date: Mon, 12 Sep 2005 14:48:50 +0000 Subject: [patch 2.6.13 2/6] swiotlb: cleanup some code duplication cruft Message-Id: <09122005104850.30992@bilbo.tuxdriver.com> List-Id: In-Reply-To: <09122005104850.30928@bilbo.tuxdriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit To: linux-kernel@vger.kernel.org, discuss@x86-64.org, linux-ia64@vger.kernel.org Cc: ak@suse.de, tony.luck@intel.com, Asit.K.Mallick@intel.com The implementations of swiotlb_sync_single_for_{cpu,device} are identical. Likewise for swiotlb_syng_sg_for_{cpu,device}. This patch move the guts of those functions to two new inline functions, and calls the appropriate one from the bodies of those functions. Signed-off-by: John W. Linville --- lib/swiotlb.c | 45 ++++++++++++++++++++++----------------------- 1 files changed, 22 insertions(+), 23 deletions(-) diff --git a/lib/swiotlb.c b/lib/swiotlb.c --- a/lib/swiotlb.c +++ b/lib/swiotlb.c @@ -492,9 +492,9 @@ swiotlb_unmap_single(struct device *hwde * address back to the card, you must first perform a * swiotlb_dma_sync_for_device, and then the device again owns the buffer */ -void -swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, - size_t size, int dir) +static inline void +swiotlb_sync_single(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir) { char *dma_addr = phys_to_virt(dev_addr); @@ -507,17 +507,17 @@ swiotlb_sync_single_for_cpu(struct devic } void +swiotlb_sync_single_for_cpu(struct device *hwdev, dma_addr_t dev_addr, + size_t size, int dir) +{ + swiotlb_sync_single(hwdev, dev_addr, size, dir); +} + +void swiotlb_sync_single_for_device(struct device *hwdev, dma_addr_t dev_addr, size_t size, int dir) { - char *dma_addr = phys_to_virt(dev_addr); - - if (dir = DMA_NONE) - BUG(); - if (dma_addr >= io_tlb_start && dma_addr < io_tlb_end) - sync_single(hwdev, dma_addr, size, dir); - else if (dir = DMA_FROM_DEVICE) - mark_clean(dma_addr, size); + swiotlb_sync_single(hwdev, dev_addr, size, dir); } /* @@ -594,9 +594,9 @@ swiotlb_unmap_sg(struct device *hwdev, s * The same as swiotlb_sync_single_* but for a scatter-gather list, same rules * and usage. */ -void -swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, - int nelems, int dir) +static inline void +swiotlb_sync_sg(struct device *hwdev, struct scatterlist *sg, + int nelems, int dir) { int i; @@ -610,18 +610,17 @@ swiotlb_sync_sg_for_cpu(struct device *h } void +swiotlb_sync_sg_for_cpu(struct device *hwdev, struct scatterlist *sg, + int nelems, int dir) +{ + swiotlb_sync_sg(hwdev, sg, nelems, dir); +} + +void swiotlb_sync_sg_for_device(struct device *hwdev, struct scatterlist *sg, int nelems, int dir) { - int i; - - if (dir = DMA_NONE) - BUG(); - - for (i = 0; i < nelems; i++, sg++) - if (sg->dma_address != SG_ENT_PHYS_ADDRESS(sg)) - sync_single(hwdev, (void *) sg->dma_address, - sg->dma_length, dir); + swiotlb_sync_sg(hwdev, sg, nelems, dir); } int