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authorNathan Chancellor <natechancellor@gmail.com>2018-09-19 22:50:22 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2018-09-25 21:21:02 +0300
commit6dbfdc1a4ee0030563af22bb682ff3bc590422f9 (patch)
tree2fdb5f0afdc2a2686be1905de219c989d14805c4 /drivers/misc/mic
parent7052c5e12851ed5882ca0d0d201060511e8ffa02 (diff)
downloadlinux-6dbfdc1a4ee0030563af22bb682ff3bc590422f9.tar.xz
misc: mic: scif: Remove unused variable
Clang warns when a variable is assigned to itself. drivers/misc/mic/scif/scif_dma.c:1577:12: warning: explicitly assigning value of variable of type 'bool' (aka '_Bool') to itself [-Wself-assign] dst_local = dst_local; ~~~~~~~~~ ^ ~~~~~~~~~ 1 warning generated. This is usually done to avoid an unused variable warning, which is the case here. dst_local is used nowhere in this function, which has been the case since the initial code drop in commit 7cc31cd27752 ("misc: mic: SCIF DMA and CPU copy interface") in 2015. Just remove the variable, it can be added back if it was intended to be used. Link: https://github.com/ClangBuiltLinux/linux/issues/107 Signed-off-by: Nathan Chancellor <natechancellor@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/misc/mic')
-rw-r--r--drivers/misc/mic/scif/scif_dma.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/misc/mic/scif/scif_dma.c b/drivers/misc/mic/scif/scif_dma.c
index 6369aeaa7056..03af8b5b7b0d 100644
--- a/drivers/misc/mic/scif/scif_dma.c
+++ b/drivers/misc/mic/scif/scif_dma.c
@@ -1553,7 +1553,7 @@ static int scif_rma_list_dma_copy_wrapper(struct scif_endpt *epd,
int src_cache_off, dst_cache_off;
s64 src_offset = work->src_offset, dst_offset = work->dst_offset;
u8 *temp = NULL;
- bool src_local = true, dst_local = false;
+ bool src_local = true;
struct scif_dma_comp_cb *comp_cb;
dma_addr_t src_dma_addr, dst_dma_addr;
int err;
@@ -1572,9 +1572,7 @@ static int scif_rma_list_dma_copy_wrapper(struct scif_endpt *epd,
src_dma_addr = __scif_off_to_dma_addr(work->src_window, src_offset);
dst_dma_addr = __scif_off_to_dma_addr(work->dst_window, dst_offset);
src_local = work->src_window->type == SCIF_WINDOW_SELF;
- dst_local = work->dst_window->type == SCIF_WINDOW_SELF;
- dst_local = dst_local;
/* Allocate dma_completion cb */
comp_cb = kzalloc(sizeof(*comp_cb), GFP_KERNEL);
if (!comp_cb)