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[2/2] ARM64: Add printf annotation to early_print

Message ID 1413277169-6941-2-git-send-email-alexander.stein@systec-electronic.com (mailing list archive)
State New, archived
Headers show

Commit Message

Alexander Stein Oct. 14, 2014, 8:59 a.m. UTC
This adds the printf format annotation to early_print to warn users about
incompatible formats and argument.

Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
---
 arch/arm64/kernel/setup.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

Comments

Catalin Marinas Oct. 14, 2014, 9:43 a.m. UTC | #1
On Tue, Oct 14, 2014 at 09:59:29AM +0100, Alexander Stein wrote:
> This adds the printf format annotation to early_print to warn users about
> incompatible formats and argument.
> 
> Signed-off-by: Alexander Stein <alexander.stein@systec-electronic.com>
> ---
>  arch/arm64/kernel/setup.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
> index edb146d..bbf633b 100644
> --- a/arch/arm64/kernel/setup.c
> +++ b/arch/arm64/kernel/setup.c
> @@ -102,7 +102,7 @@ static struct resource mem_res[] = {
>  #define kernel_code mem_res[0]
>  #define kernel_data mem_res[1]
>  
> -void __init early_print(const char *str, ...)
> +void __init __printf(1, 2) early_print(const char *str, ...)
>  {
>  	char buf[256];
>  	va_list ap;

I wonder if we need this function at all on arm64. Early on, we used
something similar to the 32-bit ARM printascii but with an early console
now, we go through the printk anyway so I think we can just remove this
function (it has a single caller anyway on arm64).
diff mbox

Patch

diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c
index edb146d..bbf633b 100644
--- a/arch/arm64/kernel/setup.c
+++ b/arch/arm64/kernel/setup.c
@@ -102,7 +102,7 @@  static struct resource mem_res[] = {
 #define kernel_code mem_res[0]
 #define kernel_data mem_res[1]
 
-void __init early_print(const char *str, ...)
+void __init __printf(1, 2) early_print(const char *str, ...)
 {
 	char buf[256];
 	va_list ap;