Re: [PATCH 6/9] net: test: Fix printf format specifier in skb_segment kunit test

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On Wed, Feb 21, 2024 at 05:27:19PM +0800, David Gow wrote:
> KUNIT_FAIL() accepts a printf-style format string, but previously did
> not let gcc validate it with the __printf() attribute. The use of %lld
> for the result of PTR_ERR() is not correct.
> 
> Instead, use %pe and pass the actual error pointer. printk() will format
> it correctly (and give a symbolic name rather than a number if
> available, which should make the output more readable, too).
> 
> Fixes: b3098d32ed6e ("net: add skb_segment kunit test")
> Signed-off-by: David Gow <davidgow@xxxxxxxxxx>

Tested-by: Guenter Roeck <linux@xxxxxxxxxxxx>

> ---
>  net/core/gso_test.c | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/net/core/gso_test.c b/net/core/gso_test.c
> index 4c2e77bd12f4..358c44680d91 100644
> --- a/net/core/gso_test.c
> +++ b/net/core/gso_test.c
> @@ -225,7 +225,7 @@ static void gso_test_func(struct kunit *test)
>  
>  	segs = skb_segment(skb, features);
>  	if (IS_ERR(segs)) {
> -		KUNIT_FAIL(test, "segs error %lld", PTR_ERR(segs));
> +		KUNIT_FAIL(test, "segs error %pe", segs);
>  		goto free_gso_skb;
>  	} else if (!segs) {
>  		KUNIT_FAIL(test, "no segments");
> -- 
> 2.44.0.rc0.258.g7320e95886-goog
> 




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