Re: [PATCH v5 3/3] x86/kexec: use pr_err() instead of pr_debug() when an error occurs

[Andrew Morton]

On Sun, 17 Dec 2023 11:35:28 +0800 Yuntao Wang <ytcoode@xxxxxxxxx> wrote:

> When an error is detected, use pr_err() instead of pr_debug() to output
> log message.
> 
> In addition, remove the unnecessary return from set_page_address().
> 
> ...
>
> --- a/arch/x86/kernel/kexec-bzimage64.c
> +++ b/arch/x86/kernel/kexec-bzimage64.c
> @@ -424,7 +424,7 @@ static void *bzImage64_load(struct kimage *image, char *kernel,
>  	 * command line. Make sure it does not overflow
>  	 */
>  	if (cmdline_len + MAX_ELFCOREHDR_STR_LEN > header->cmdline_size) {
> -		pr_debug("Appending elfcorehdr=<addr> to command line exceeds maximum allowed length\n");
> +		pr_err("Appending elfcorehdr=<addr> to command line exceeds maximum allowed length\n");
>  		return ERR_PTR(-EINVAL);
>  	}

https://lkml.kernel.org/r/20231213055747.61826-4-bhe@xxxxxxxxxx has
already changed this to call kexec_dprintk().  I'll skip this patch.