[openwrt/openwrt] generic: 5.15: backport bcm63xx wdt patch fixing fallthrough warning

[LEDE Commits]

ansuel pushed a commit to openwrt/openwrt.git, branch master:
https://git.openwrt.org/77ecc2844b5172cbb23d2beabd4b21e9b57d97bb

commit 77ecc2844b5172cbb23d2beabd4b21e9b57d97bb
Author: Christian Marangi <ansuelsmth at gmail.com>
AuthorDate: Sat May 6 10:36:48 2023 +0200

    generic: 5.15: backport bcm63xx wdt patch fixing fallthrough warning
    
    Backport patch present upstream fixing error for bcm63xx:
    drivers/watchdog/bcm63xx_wdt.c: In function 'bcm63xx_wdt_ioctl':
    drivers/watchdog/bcm63xx_wdt.c:208:17: error: this statement may fall through [-Werror=implicit-fallthrough=]
      208 |                 bcm63xx_wdt_pet();
          |                 ^~~~~~~~~~~~~~~~~
    drivers/watchdog/bcm63xx_wdt.c:210:9: note: here
      210 |         case WDIOC_GETTIMEOUT:
          |         ^~~~
    cc1: all warnings being treated as errors
    
    Signed-off-by: Christian Marangi <ansuelsmth at gmail.com>
---
 ...chdog-bcm63xx_wdt-fix-fallthrough-warning.patch | 33 ++++++++++++++++++++++
 1 file changed, 33 insertions(+)

diff --git a/target/linux/generic/backport-5.15/302-v5.16-watchdog-bcm63xx_wdt-fix-fallthrough-warning.patch b/target/linux/generic/backport-5.15/302-v5.16-watchdog-bcm63xx_wdt-fix-fallthrough-warning.patch
new file mode 100644
index 0000000000..84ae5a7fc7
--- /dev/null
+++ b/target/linux/generic/backport-5.15/302-v5.16-watchdog-bcm63xx_wdt-fix-fallthrough-warning.patch
@@ -0,0 +1,33 @@
+From ee1a0696934a8b77a6a2098f92832c46d34ec5da Mon Sep 17 00:00:00 2001
+From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal at milecki.pl>
+Date: Wed, 27 Oct 2021 14:31:35 +0200
+Subject: [PATCH] watchdog: bcm63xx_wdt: fix fallthrough warning
+MIME-Version: 1.0
+Content-Type: text/plain; charset=UTF-8
+Content-Transfer-Encoding: 8bit
+
+This fixes:
+drivers/watchdog/bcm63xx_wdt.c: In function 'bcm63xx_wdt_ioctl':
+drivers/watchdog/bcm63xx_wdt.c:208:17: warning: this statement may fall through [-Wimplicit-fallthrough=]
+
+Signed-off-by: Rafał Miłecki <rafal at milecki.pl>
+Reviewed-by: Florian Fainelli <f.fainelli at gmail.com>
+Reviewed-by: Guenter Roeck <linux at roeck-us.net>
+Link: https://lore.kernel.org/r/20211027123135.27458-1-zajec5@gmail.com
+Signed-off-by: Guenter Roeck <linux at roeck-us.net>
+Signed-off-by: Wim Van Sebroeck <wim at linux-watchdog.org>
+---
+ drivers/watchdog/bcm63xx_wdt.c | 2 ++
+ 1 file changed, 2 insertions(+)
+
+--- a/drivers/watchdog/bcm63xx_wdt.c
++++ b/drivers/watchdog/bcm63xx_wdt.c
+@@ -207,6 +207,8 @@ static long bcm63xx_wdt_ioctl(struct fil
+ 
+ 		bcm63xx_wdt_pet();
+ 
++		fallthrough;
++
+ 	case WDIOC_GETTIMEOUT:
+ 		return put_user(wdt_time, p);
+