Openwrt working with patches in the build system (8)

Reference :https://openwrt.org/docs/guide-developer/build-system/use-patches-with-buildsystem

example:

　　in the kernel top-level directory

　　# quilt new  platform/913-MIPS-ath79-CUS531MP3-NAND-support-01-change-default-watchdog-timeout.patch

　　# quilt   edit   drivers/watchdog/ath79_wdt.c

　　# quilt diff

--- a/drivers/watchdog/ath79_wdt.c

+++ b/drivers/watchdog/ath79_wdt.c

@@ -38,7 +38,7 @@

 

 #define DRIVER_NAME  "ath79-wdt"

 

-#define WDT_TIMEOUT  15     /* seconds */

+#define WDT_TIMEOUT 60     /* seconds */

 

 #define WDOG_REG_CTRL              0x00

 #define WDOG_REG_TIMER           0x040

　　//generate patches file

           # quilt refresh