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Linux kernel mirror (for testing) git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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x86/head_64: Use TESTB instead of TESTL in secondary_startup_64_no_verify()

There is no need to use TESTL when checking the least-significant bit with a TEST instruction. Use TESTB, which is three bytes shorter: f6 05 00 00 00 00 01 testb $0x1,0x0(%rip) vs: f7 05 00 00 00 00 01 testl $0x1,0x0(%rip) 00 00 00 for the same effect. No functional changes intended. Signed-off-by: Uros Bizjak <ubizjak@gmail.com> Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de> Link: https://lore.kernel.org/r/20231109201032.4439-1-ubizjak@gmail.com

Author Uros Bizjak Committer Borislav Petkov (AMD) Date Commit Parent 7a0a6d55
+1 -1
1 changed file
Unified Split
+1 -1
1 changed file