From 0621210ab7693e6d50585ca689d95d57df617455 Mon Sep 17 00:00:00 2001 From: Colin Ian King Date: Mon, 16 May 2022 19:42:15 +0100 Subject: [PATCH] x86/sev: Remove duplicated assignment to variable info Variable info is being assigned the same value twice, remove the redundant assignment. Also assign variable v in the declaration. Cleans up clang scan warning: warning: Value stored to 'info' during its initialization is never read [deadcode.DeadStores] No code changed: # arch/x86/kernel/sev.o: text data bss dec hex filename 19878 4487 4112 28477 6f3d sev.o.before 19878 4487 4112 28477 6f3d sev.o.after md5: bfbaa515af818615fd01fea91e7eba1b sev.o.before.asm bfbaa515af818615fd01fea91e7eba1b sev.o.after.asm [ bp: Running the before/after check on sev.c because sev-shared.c gets included into it. ] Fixes: 597cfe48212a ("x86/boot/compressed/64: Setup a GHCB-based VC Exception handler") Signed-off-by: Colin Ian King Signed-off-by: Borislav Petkov Link: https://lore.kernel.org/r/20220516184215.51841-1-colin.i.king@gmail.com --- arch/x86/kernel/sev-shared.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-) diff --git a/arch/x86/kernel/sev-shared.c b/arch/x86/kernel/sev-shared.c index 2b4270d..b478edf 100644 --- a/arch/x86/kernel/sev-shared.c +++ b/arch/x86/kernel/sev-shared.c @@ -201,10 +201,7 @@ static enum es_result verify_exception_info(struct ghcb *ghcb, struct es_em_ctxt if (ret == 1) { u64 info = ghcb->save.sw_exit_info_2; - unsigned long v; - - info = ghcb->save.sw_exit_info_2; - v = info & SVM_EVTINJ_VEC_MASK; + unsigned long v = info & SVM_EVTINJ_VEC_MASK; /* Check if exception information from hypervisor is sane. */ if ((info & SVM_EVTINJ_VALID) && -- 2.7.4