crypto: x86/crc32c - Use RIP-relative addressing

Prefer RIP-relative addressing where possible, which removes the need
for boot time relocation fixups.

Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

diff --git a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
index ec35915f0901a08765a9937084d3d2b3a793687a..5f843dce77f1de667af7381ff0d04472ffabcb9c 100644 (file)
--- a/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
+++ b/arch/x86/crypto/crc32c-pcl-intel-asm_64.S
@@ -168,7 +168,8 @@ continue_block:
        xor     crc2, crc2
 
        ## branch into array
-       mov     jump_table(,%rax,8), %bufp
+       leaq    jump_table(%rip), %bufp
+       mov     (%bufp,%rax,8), %bufp
        JMP_NOSPEC bufp
 
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