From f73328c3192eb4b93d62673cdfb6c0da502a9d71 Mon Sep 17 00:00:00 2001 From: Arnd Bergmann Date: Wed, 27 May 2020 16:17:40 +0200 Subject: [PATCH] crypto: x86/crc32c - fix building with clang ias commit 44623b2818f4a442726639572f44fd9b6d0ef68c upstream. The clang integrated assembler complains about movzxw: arch/x86/crypto/crc32c-pcl-intel-asm_64.S:173:2: error: invalid instruction mnemonic 'movzxw' It seems that movzwq is the mnemonic that it expects instead, and this is what objdump prints when disassembling the file. Fixes: 6a8ce1ef3940 ("crypto: crc32c - Optimize CRC32C calculation with PCLMULQDQ instruction") Signed-off-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Signed-off-by: Herbert Xu [jc: Fixed conflicts due to lack of 34fdce6981b9 ("x86: Change {JMP,CALL}_NOSPEC argument")] Signed-off-by: Jian Cai Signed-off-by: Greg Kroah-Hartman --- arch/x86/crypto/crc32c-pcl-intel-asm_64.S | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S index d9b734d0c8cc..3c6e01520a97 100644 --- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S +++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S @@ -170,7 +170,7 @@ continue_block: ## branch into array lea jump_table(%rip), bufp - movzxw (bufp, %rax, 2), len + movzwq (bufp, %rax, 2), len lea crc_array(%rip), bufp lea (bufp, len, 1), bufp JMP_NOSPEC bufp