diff options
author | Paul Bolle <pebolle@tiscali.nl> | 2013-07-20 14:05:05 -0400 |
---|---|---|
committer | Dan Williams <djbw@fb.com> | 2013-08-23 03:21:44 -0400 |
commit | e6a5fa63407bfc5b7b13e850a0a67e4db8c00ce7 (patch) | |
tree | eecbc5158592733598d06048cc518196b1fa4a75 /drivers | |
parent | c4d27c4d024f5440497106bb2ae15e9e60f7099c (diff) |
ioatdma: silence GCC warnings
Building dma_v3.o triggers a GCC warning:
drivers/dma/ioat/dma_v3.c: In function ‘__ioat3_prep_pq16_lock’:
drivers/dma/ioat/dma_v3.c:264:11: warning: array subscript is below array bounds [-Warray-bounds]
drivers/dma/ioat/dma_v3.c:264:11: warning: array subscript is below array bounds [-Warray-bounds]
This warning is caused by pq16_set_src(). It uses "int idx" as an index
to an eight element array. Changing "idx" to "unsigned" silences this
warning. Apparently GCC can then determine that "idx" will never be
negative.
Signed-off-by: Paul Bolle <pebolle@tiscali.nl>
Acked-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Dan Williams <djbw@fb.com>
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/dma/ioat/dma_v3.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/dma/ioat/dma_v3.c b/drivers/dma/ioat/dma_v3.c index c94e0d210667..d8ececaf1b57 100644 --- a/drivers/dma/ioat/dma_v3.c +++ b/drivers/dma/ioat/dma_v3.c | |||
@@ -251,7 +251,7 @@ static bool is_bwd_noraid(struct pci_dev *pdev) | |||
251 | } | 251 | } |
252 | 252 | ||
253 | static void pq16_set_src(struct ioat_raw_descriptor *desc[3], | 253 | static void pq16_set_src(struct ioat_raw_descriptor *desc[3], |
254 | dma_addr_t addr, u32 offset, u8 coef, int idx) | 254 | dma_addr_t addr, u32 offset, u8 coef, unsigned idx) |
255 | { | 255 | { |
256 | struct ioat_pq_descriptor *pq = (struct ioat_pq_descriptor *)desc[0]; | 256 | struct ioat_pq_descriptor *pq = (struct ioat_pq_descriptor *)desc[0]; |
257 | struct ioat_pq16a_descriptor *pq16 = | 257 | struct ioat_pq16a_descriptor *pq16 = |