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>
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@ -251,7 +251,7 @@ static bool is_bwd_noraid(struct pci_dev *pdev)
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}
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static void pq16_set_src(struct ioat_raw_descriptor *desc[3],
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dma_addr_t addr, u32 offset, u8 coef, int idx)
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dma_addr_t addr, u32 offset, u8 coef, unsigned idx)
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{
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struct ioat_pq_descriptor *pq = (struct ioat_pq_descriptor *)desc[0];
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struct ioat_pq16a_descriptor *pq16 =
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