On Tue, 19 Dec 2023 15:29:01 +0800 Yuntao Wang <ytco...@gmail.com> wrote:
> When an error is detected, use pr_err() instead of kexec_dprintk() to
> output log message.
>
> In addition, remove the unnecessary return from set_page_address().
The above describes what the code does, which is already quite clear
from looking at the code.
Please write changelogs and code comments which describe *why* the code
does something, rather than *what* it does.
>
>
> --- a/arch/x86/kernel/kexec-bzimage64.c
> +++ b/arch/x86/kernel/kexec-bzimage64.c
> @@ -429,7 +429,7 @@ 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) {
> - kexec_dprintk("Appending elfcorehdr=<addr> to command line
> exceeds maximum allowed length\n");
> + pr_err("Appending elfcorehdr=<addr> to command line exceeds
> maximum allowed length\n");
ie, what are the reasons for this change?
> return ERR_PTR(-EINVAL);
> }
>
> diff --git a/mm/highmem.c b/mm/highmem.c
> index e19269093a93..bd48ba445dd4 100644
> --- a/mm/highmem.c
> +++ b/mm/highmem.c
> @@ -799,8 +799,6 @@ void set_page_address(struct page *page, void *virtual)
> }
> spin_unlock_irqrestore(&pas->lock, flags);
> }
> -
> - return;
> }
>
> void __init page_address_init(void)
> --
> 2.43.0
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