[PATCH v4 11/12] dmaengine: ioat: use sysfs_emit() in per-channel sysfs show()
Logan Gunthorpe <[email protected]> Tue, 28 Jul 2026 11:15:22 -0600
| Newsgroups | org.kernel.vger.dmaengine,org.kernel.vger.linux-kernel,org.kernel.vger.linux-pci |
|---|---|
| Message-ID | <[email protected]> |
Convert the sprintf() calls in the per-channel sysfs attribute show() functions to sysfs_emit(). Acked-by: Dave Jiang <[email protected]> Reviewed-by: Frank Li <[email protected]> Signed-off-by: Logan Gunthorpe <[email protected]> --- drivers/dma/ioat/sysfs.c | 22 +++++++++++----------- 1 file changed, 11 insertions(+), 11 deletions(-) diff --git a/drivers/dma/ioat/sysfs.c b/drivers/dma/ioat/sysfs.c index e796ddb5383f..976134df8108 100644 --- a/drivers/dma/ioat/sysfs.c +++ b/drivers/dma/ioat/sysfs.c @@ -24,12 +24,12 @@ static ssize_t cap_show(struct dma_chan *c, char *page) { struct dma_device *dma = c->device; - return sprintf(page, "copy%s%s%s%s%s\n", - dma_has_cap(DMA_PQ, dma->cap_mask) ? " pq" : "", - dma_has_cap(DMA_PQ_VAL, dma->cap_mask) ? " pq_val" : "", - dma_has_cap(DMA_XOR, dma->cap_mask) ? " xor" : "", - dma_has_cap(DMA_XOR_VAL, dma->cap_mask) ? " xor_val" : "", - dma_has_cap(DMA_INTERRUPT, dma->cap_mask) ? " intr" : ""); + return sysfs_emit(page, "copy%s%s%s%s%s\n", + dma_has_cap(DMA_PQ, dma->cap_mask) ? " pq" : "", + dma_has_cap(DMA_PQ_VAL, dma->cap_mask) ? " pq_val" : "", + dma_has_cap(DMA_XOR, dma->cap_mask) ? " xor" : "", + dma_has_cap(DMA_XOR_VAL, dma->cap_mask) ? " xor_val" : "", + dma_has_cap(DMA_INTERRUPT, dma->cap_mask) ? " intr" : ""); } static const struct ioat_sysfs_entry ioat_cap_attr = __ATTR_RO(cap); @@ -39,8 +39,8 @@ static ssize_t version_show(struct dma_chan *c, char *page) struct dma_device *dma = c->device; struct ioatdma_device *ioat_dma = to_ioatdma_device(dma); - return sprintf(page, "%d.%d\n", - ioat_dma->version >> 4, ioat_dma->version & 0xf); + return sysfs_emit(page, "%d.%d\n", + ioat_dma->version >> 4, ioat_dma->version & 0xf); } static const struct ioat_sysfs_entry ioat_version_attr = __ATTR_RO(version); @@ -118,7 +118,7 @@ static ssize_t ring_size_show(struct dma_chan *c, char *page) { struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - return sprintf(page, "%d\n", (1 << ioat_chan->alloc_order) & ~1); + return sysfs_emit(page, "%d\n", (1 << ioat_chan->alloc_order) & ~1); } static const struct ioat_sysfs_entry ring_size_attr = __ATTR_RO(ring_size); @@ -127,7 +127,7 @@ static ssize_t ring_active_show(struct dma_chan *c, char *page) struct ioatdma_chan *ioat_chan = to_ioat_chan(c); /* ...taken outside the lock, no need to be precise */ - return sprintf(page, "%d\n", ioat_ring_active(ioat_chan)); + return sysfs_emit(page, "%d\n", ioat_ring_active(ioat_chan)); } static const struct ioat_sysfs_entry ring_active_attr = __ATTR_RO(ring_active); @@ -135,7 +135,7 @@ static ssize_t intr_coalesce_show(struct dma_chan *c, char *page) { struct ioatdma_chan *ioat_chan = to_ioat_chan(c); - return sprintf(page, "%d\n", ioat_chan->intr_coalesce); + return sysfs_emit(page, "%d\n", ioat_chan->intr_coalesce); } static ssize_t intr_coalesce_store(struct dma_chan *c, const char *page, -- 2.47.3