• Guenter Roeck's avatar
    crypto: asymmetric_keys/rsa - Use non-conflicting variable name · 2cdcc357
    Guenter Roeck authored
    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 ‘;’, ‘,’ or ‘)’
    		before numeric constant
     #define _X 0x40 /* hex digit */
                ^
    crypto/asymmetric_keys/rsa.c:123:47: note: in expansion of macro ‘_X’
     static int RSA_I2OSP(MPI x, size_t xLen, u8 **_X)
                                                   ^
    crypto/asymmetric_keys/rsa.c: In function ‘RSA_verify_signature’:
    crypto/asymmetric_keys/rsa.c:256:2: error:
    		implicit declaration of function ‘RSA_I2OSP’
    
    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: b6197b93 ("arm64 : Introduce support for ACPI _CCA object")
    Cc: Suthikulpanit, Suravee <Suravee.Suthikulpanit@amd.com>
    Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
    Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
    2cdcc357
rsa.c 6.67 KB