[PATCH v2 0/4] kexec: add kexec flag to control debug printing

[Andrew Morton]

On Fri, 19 Dec 2025 17:31:30 +0800 Qiang Ma <maqianga at uniontech.com> wrote:

> The commit cbc2fe9d9cb2 ("kexec_file: add kexec_file flag to control
> debug printing") added the kexec_file flag to control debug printing.
> However, for arm64, after commit 6f8c1da071a4 ("kexec_file, arm64: print
> out debugging message if required"), when using the kexec_load interface,
> the kexec_image_info function is called to print debug message, but
> it uses kexec_dprintk, which is only available under kexec_file,
> then when specifying 'kexec -d', kexec_load interface will print nothing.
> 
> For riscv, commit eb7622d908a09 ("kexec_file, riscv: print out debugging
> message if required") remove kexec_image_info(), because the content has
> been printed out in generic code in kexec_file_load, but not in kexec_load.
> 
> Therefore, in order to solve the two problems mentioned above, for this
> patchset, several things need to be done:
> 
> 1. Enabling kexec_dprintk is available for kexec_load.
> 2. Add some debugging message of the deleted kexec_image_info
>    to generic code.
> 3. Remove duplicate debugging prints for arm64.

Some additional review input on this series would be good, if someone
has the time.