* [PATCH] video: fbdev: mark expected switch fall-throughs
@ 2018-07-09 22:41 ` Gustavo A. R. Silva
2018-07-24 15:58 ` Bartlomiej Zolnierkiewicz
0 siblings, 1 reply; 2+ messages in thread
From: Gustavo A. R. Silva @ 2018-07-09 22:41 UTC (permalink / raw)
To: Bartlomiej Zolnierkiewicz, Florian Tobias Schandinat
Cc: dri-devel, linux-fbdev, linux-kernel, Gustavo A. R. Silva
In preparation to enabling -Wimplicit-fallthrough, mark switch cases
where we are expecting to fall through.
Signed-off-by: Gustavo A. R. Silva <gustavo@embeddedor.com>
---
drivers/video/fbdev/i740fb.c | 1 +
drivers/video/fbdev/pm2fb.c | 2 ++
drivers/video/fbdev/tdfxfb.c | 1 +
drivers/video/fbdev/via/lcd.c | 1 +
4 files changed, 5 insertions(+)
diff --git a/drivers/video/fbdev/i740fb.c b/drivers/video/fbdev/i740fb.c
index 7bc5f60..f6d7b04 100644
--- a/drivers/video/fbdev/i740fb.c
+++ b/drivers/video/fbdev/i740fb.c
@@ -429,6 +429,7 @@ static int i740fb_decode_var(const struct fb_var_screeninfo *var,
break;
case 9 ... 15:
bpp = 15;
+ /* fall through */
case 16:
if ((1000000 / var->pixclock) > DACSPEED16) {
dev_err(info->device, "requested pixclock %i MHz out of range (max. %i MHz at 15/16bpp)\n",
diff --git a/drivers/video/fbdev/pm2fb.c b/drivers/video/fbdev/pm2fb.c
index bd6c2f5..1dcf02e 100644
--- a/drivers/video/fbdev/pm2fb.c
+++ b/drivers/video/fbdev/pm2fb.c
@@ -233,8 +233,10 @@ static u32 to3264(u32 timing, int bpp, int is64)
switch (bpp) {
case 24:
timing *= 3;
+ /* fall through */
case 8:
timing >>= 1;
+ /* fall through */
case 16:
timing >>= 1;
case 32:
diff --git a/drivers/video/fbdev/tdfxfb.c b/drivers/video/fbdev/tdfxfb.c
index dec1fed..fbbf26b 100644
--- a/drivers/video/fbdev/tdfxfb.c
+++ b/drivers/video/fbdev/tdfxfb.c
@@ -522,6 +522,7 @@ static int tdfxfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
case 32:
var->transp.offset = 24;
var->transp.length = 8;
+ /* fall through */
case 24:
var->red.offset = 16;
var->green.offset = 8;
diff --git a/drivers/video/fbdev/via/lcd.c b/drivers/video/fbdev/via/lcd.c
index 5d21ff4..b9305d7 100644
--- a/drivers/video/fbdev/via/lcd.c
+++ b/drivers/video/fbdev/via/lcd.c
@@ -758,6 +758,7 @@ static void set_lcd_output_path(int set_iga, int output_interface)
viaparinfo->chip_info->gfx_chip_name))
viafb_write_reg_mask(CR97, VIACR, 0x84,
BIT7 + BIT2 + BIT1 + BIT0);
+ /* fall through */
case INTERFACE_DVP0:
case INTERFACE_DVP1:
case INTERFACE_DFP_HIGH:
--
2.7.4
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