@@ -3,7 +3,7 @@
#define _LINUX_CMDLINE_H
/*
- * This function will append a builtin command line to the command
+ * This function will append or prepend a builtin command line to the command
* line provided by the bootloader. Kconfig options can be used to alter
* the behavior of this builtin command line.
* @dest: The destination of the final appended/prepended string.
@@ -22,6 +22,9 @@ static __always_inline void cmdline_build(char *dest, const char *src, size_t le
strlcat(dest, CONFIG_CMDLINE, length);
return;
}
+
+ if (IS_ENABLED(CONFIG_CMDLINE_PREPEND) && sizeof(CONFIG_CMDLINE) > 1)
+ strlcat(dest, CONFIG_CMDLINE " ", length);
#endif
if (dest != src)
strlcat(dest, src, length);
This patchs adds an option of prepend a text to the command line instead of appending it. Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr> --- include/linux/cmdline.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-)