Messages in this thread Patch in this message | | | Subject | [PATCH] x86: fix movdir64b() sparse warning | From | Dave Jiang <> | Date | Wed, 06 Jan 2021 13:40:02 -0700 |
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Add missing __iomem anotation to address sparse warning.
"sparse warnings: (new ones prefixed by >>)" drivers/dma/idxd/submit.c: note: in included file (through include/linux/io.h, include/linux/pci.h): >> arch/x86/include/asm/io.h:422:27: sparse: sparse: incorrect type in argument 1 (different address spaces) @@ expected void *dst @@ got void [noderef] __iomem *dst @@ arch/x86/include/asm/io.h:422:27: sparse: expected void *dst arch/x86/include/asm/io.h:422:27: sparse: got void [noderef] __iomem *dst
Fixes: 0888e1030d3e ("x86/asm: Carve out a generic movdir64b() helper for general usage") Reported-by: kernel test robot <lkp@intel.com> Reviewed-by: Ben Widawsky <ben.widawsky@intel.com> Signed-off-by: Dave Jiang <dave.jiang@intel.com> --- arch/x86/include/asm/special_insns.h | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h index cc177b4431ae..4e234645f0c6 100644 --- a/arch/x86/include/asm/special_insns.h +++ b/arch/x86/include/asm/special_insns.h @@ -243,10 +243,10 @@ static inline void serialize(void) } /* The dst parameter must be 64-bytes aligned */ -static inline void movdir64b(void *dst, const void *src) +static inline void movdir64b(void __iomem *dst, const void *src) { const struct { char _[64]; } *__src = src; - struct { char _[64]; } *__dst = dst; + struct { char _[64]; } __iomem *__dst = dst; /* * MOVDIR64B %(rdx), rax.
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