linux-kernel - [PATCH V2] video: remove set but not used variable 'mach64RefFreq'

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Date:   Mon, 20 Jan 2020 14:33:27 +0800
From:   yu kuai <yukuai3@...wei.com>
To:     <b.zolnierkie@...sung.com>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-fbdev@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, <yukuai3@...wei.com>,
        <zhengbin13@...wei.com>, <yi.zhang@...wei.com>
Subject: [PATCH V2] video: remove set but not used variable 'mach64RefFreq'

Fixes gcc '-Wunused-but-set-variable' warning:

drivers/video/fbdev/aty/mach64_gx.c: In function ‘aty_var_to_pll_8398’:
drivers/video/fbdev/aty/mach64_gx.c:621:36: warning: variable
‘mach64RefFreq’ set but not used [-Wunused-but-set-variable]

It is never used, and so can be removed.

Signed-off-by: yu kuai <yukuai3@...wei.com>
---
changes in V2:
 Fix the mistake that definition of 'mach64MinFreq' and 'mach64MaxFreq'
 was removed.

 drivers/video/fbdev/aty/mach64_gx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/video/fbdev/aty/mach64_gx.c b/drivers/video/fbdev/aty/mach64_gx.c
index 27cb65fa2ba2..9c37e28fb78b 100644
--- a/drivers/video/fbdev/aty/mach64_gx.c
+++ b/drivers/video/fbdev/aty/mach64_gx.c
@@ -618,14 +618,13 @@ static int aty_var_to_pll_8398(const struct fb_info *info, u32 vclk_per,
 	u32 mhz100;		/* in 0.01 MHz */
 	u32 program_bits;
 	/* u32 post_divider; */
-	u32 mach64MinFreq, mach64MaxFreq, mach64RefFreq;
+	u32 mach64MinFreq, mach64MaxFreq;
 	u16 m, n, k = 0, save_m, save_n, twoToKth;
 
 	/* Calculate the programming word */
 	mhz100 = 100000000 / vclk_per;
 	mach64MinFreq = MIN_FREQ_2595;
 	mach64MaxFreq = MAX_FREQ_2595;
-	mach64RefFreq = REF_FREQ_2595;	/* 14.32 MHz */
 
 	save_m = 0;
 	save_n = 0;
-- 
2.17.2