From: Bill Wendling isanbard@gmail.com
When compiling with -Wformat, clang emits the following warnings:
arch/x86/kernel/e820.c:877:15: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security] early_printk(msg); ^~~ arch/x86/kernel/e820.c:878:8: error: format string is not a string literal (potentially insecure) [-Werror,-Wformat-security] panic(msg); ^~~
Use a string literal for the format string.
Link: https://github.com/ClangBuiltLinux/linux/issues/378 Signed-off-by: Bill Wendling isanbard@gmail.com --- arch/x86/kernel/e820.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/x86/kernel/e820.c b/arch/x86/kernel/e820.c index f267205f2d5a..ca4634a0bdb5 100644 --- a/arch/x86/kernel/e820.c +++ b/arch/x86/kernel/e820.c @@ -874,8 +874,8 @@ unsigned long __init e820__end_of_low_ram_pfn(void)
static void __init early_panic(char *msg) { - early_printk(msg); - panic(msg); + early_printk("%s", msg); + panic("%s", msg); }
static int userdef __initdata;