[03/12] x86/e820: use correct format characters

Commit Message

Bill Wendling June 9, 2022, 10:16 p.m. UTC

From: Bill Wendling <[e-mail]>

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 <[e-mail]>
---
 arch/x86/kernel/e820.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

Patch

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;