Re: [PATCH] keys: Use non-conflicting variable name

From: Herbert Xu
Date: Thu Jun 25 2015 - 11:36:51 EST


On Wed, Jun 24, 2015 at 03:27:01PM -0700, Guenter Roeck wrote:
> arm64:allmodconfig fails to build as follows.
>
> In file included from include/acpi/platform/aclinux.h:74:0,
> from include/acpi/platform/acenv.h:173,
> from include/acpi/acpi.h:56,
> from include/linux/acpi.h:37,
> from ./arch/arm64/include/asm/dma-mapping.h:21,
> from include/linux/dma-mapping.h:86,
> from include/linux/skbuff.h:34,
> from include/crypto/algapi.h:18,
> from crypto/asymmetric_keys/rsa.c:16:
> include/linux/ctype.h:15:12: error: expected â;â, â,â or â)â
> before numeric constant
> #define _X 0x40 /* hex digit */
> ^
> crypto/asymmetric_keys/rsa.c:123:47: note: in expansion of macro â_Xâ
> static int RSA_I2OSP(MPI x, size_t xLen, u8 **_X)
> ^
> crypto/asymmetric_keys/rsa.c: In function âRSA_verify_signatureâ:
> crypto/asymmetric_keys/rsa.c:256:2: error:
> implicit declaration of function âRSA_I2OSPâ
>
> The problem is caused by an unrelated include file change, resulting in
> the inclusion of ctype.h on arm64. This in turn causes the local variable
> _X to conflict with macro _X used in ctype.h.
>
> Fixes: b6197b93fa4b ("arm64 : Introduce support for ACPI _CCA object")
> Cc: Suthikulpanit, Suravee <Suravee.Suthikulpanit@xxxxxxx>
> Signed-off-by: Guenter Roeck <linux@xxxxxxxxxxxx>

Applied.
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Email: Herbert Xu <herbert@xxxxxxxxxxxxxxxxxxx>
Home Page: http://gondor.apana.org.au/~herbert/
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