C11 standard (at 6.10.3.3) says that ## operator (paste) has undefined behavior when one of the result operands is not a valid preprocessing token.
Therefore the macro expansion may depend on compiler implementation which may or no preserve the leading white space. Moreover other places in kernel use CONCAT(a,b) instead of CONCAT(a, b). Changing favors concise usage. Signed-off-by: Vinicius Tinti <[email protected]> Acked-by: Behan Webster <[email protected]> --- arch/x86/crypto/aes_ctrby8_avx-x86_64.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S index a916c4a..7a71553 100644 --- a/arch/x86/crypto/aes_ctrby8_avx-x86_64.S +++ b/arch/x86/crypto/aes_ctrby8_avx-x86_64.S @@ -93,7 +93,7 @@ #define tmp %r10 #define DDQ(i) CONCAT(ddq_add_,i) -#define XMM(i) CONCAT(%xmm, i) +#define XMM(i) CONCAT(%xmm,i) #define DDQ_DATA 0 #define XDATA 1 #define KEY_128 1 -- 2.7.3
