linux-kernel - [PATCH] x86: drop warning from mtrr: -Wunused-but-set-variable

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Message-Id: <20190208125343.11451-1-tsu.yubo@gmail.com>
Date:   Fri,  8 Feb 2019 07:53:43 -0500
From:   Bo YU <tsu.yubo@...il.com>
To:     tglx@...utronix.de, mingo@...hat.com, bp@...en8.de,
        linux-kernel@...r.kernel.org
Cc:     Bo Yu <tsu.yubo@...il.com>, hpa@...or.com, x86@...nel.org,
        puwen@...on.cn
Subject: [PATCH] x86: drop warning from mtrr: -Wunused-but-set-variable

From: Bo Yu <tsu.yubo@...il.com>

There is a warning if enable W=1 when compile kernel:

arch/x86/kernel/cpu/mtrr/cleanup.c:299:16: warning: variable ‘second_basek’ set but not used [-Wunused-but-set-variable]
  unsigned long second_basek, second_sizek;

Signed-off-by: Bo Yu <tsu.yubo@...il.com>
---
 arch/x86/kernel/cpu/mtrr/cleanup.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/arch/x86/kernel/cpu/mtrr/cleanup.c b/arch/x86/kernel/cpu/mtrr/cleanup.c
index 3668c5df90c6..5bd011737272 100644
--- a/arch/x86/kernel/cpu/mtrr/cleanup.c
+++ b/arch/x86/kernel/cpu/mtrr/cleanup.c
@@ -296,7 +296,7 @@ range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
 			unsigned long sizek)
 {
 	unsigned long hole_basek, hole_sizek;
-	unsigned long second_basek, second_sizek;
+	unsigned long second_sizek;
 	unsigned long range0_basek, range0_sizek;
 	unsigned long range_basek, range_sizek;
 	unsigned long chunk_sizek;
@@ -304,7 +304,6 @@ range_to_mtrr_with_hole(struct var_mtrr_state *state, unsigned long basek,
 
 	hole_basek = 0;
 	hole_sizek = 0;
-	second_basek = 0;
 	second_sizek = 0;
 	chunk_sizek = state->chunk_sizek;
 	gran_sizek = state->gran_sizek;
-- 
2.11.0