linux-kernel - [PATCH] x86/sev: clean up initialization of variables info and v

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Date:   Fri, 26 Nov 2021 22:36:58 +0000
From:   Colin Ian King <colin.i.king@...glemail.com>
To:     Thomas Gleixner <tglx@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>, Borislav Petkov <bp@...en8.de>,
        Dave Hansen <dave.hansen@...ux.intel.com>, x86@...nel.org,
        "H . Peter Anvin" <hpa@...or.com>
Cc:     kernel-janitors@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] x86/sev: clean up initialization of variables info and v

Currently variable info is being assigned twice, the second assignment
is redundant. Clean up the code by making the assignments at declaration
time and remove the latter two assignments.

Signed-off-by: Colin Ian King <colin.i.king@...il.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 ce987688bbc0..6083d6f658c8 100644
--- a/arch/x86/kernel/sev-shared.c
+++ b/arch/x86/kernel/sev-shared.c
@@ -104,10 +104,7 @@ 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) &&
-- 
2.33.1