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| author | Paul Bolle <pebolle@tiscali.nl> | 2013-07-20 22:05:05 +0400 |
|---|---|---|
| committer | Dan Williams <djbw@fb.com> | 2013-08-23 11:21:44 +0400 |
| commit | e6a5fa63407bfc5b7b13e850a0a67e4db8c00ce7 (patch) | |
| tree | eecbc5158592733598d06048cc518196b1fa4a75 /drivers | |
| parent | c4d27c4d024f5440497106bb2ae15e9e60f7099c (diff) | |
| download | linux-e6a5fa63407bfc5b7b13e850a0a67e4db8c00ce7.tar.xz | |
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) } static void pq16_set_src(struct ioat_raw_descriptor *desc[3], - dma_addr_t addr, u32 offset, u8 coef, int idx) + dma_addr_t addr, u32 offset, u8 coef, unsigned idx) { struct ioat_pq_descriptor *pq = (struct ioat_pq_descriptor *)desc[0]; struct ioat_pq16a_descriptor *pq16 = |