Re: [PATCH 0/2] of: Fix handling CONFIG_CMDLINE* even without /chosen node

From: Alexander Sverdlin
Date: Wed Jan 04 2023 - 04:49:07 EST


Hi Rob,

thanks for looking into it!

On Tue, 2023-01-03 at 12:00 -0600, Rob Herring wrote:
> Commit a7d550f82b445cf218b47a2c1a9c56e97ecb8c7a (of: fdt: Honor CONFIG_CMDLINE*
> even without /chosen node) moved the processing of the kernel built-in command
> line (CONFIG_CMDLINE) from the early_init_dt_scan_chosen routine to the
> early_init_dt_scan_nodes routine.
>
> The current powerpc startup code does not call into early_init_dt_scan_nodes, so
> processing of CONFIG_CMDLINE never happens, even if CONFIG_CMDLINE_FORCE=y.
> The result is an empty kernel command line, and mounting of the root file system
> then fails with a kernel panic (not syncing: VFS: Unable to mount root fs).
>
> Let's revert the above commit and redo the missing /chosen node handling
> within early_init_dt_scan_chosen().
>
> Signed-off-by: Rob Herring <robh@xxxxxxxxxx>

The series looks good to me,
Reviewed-by: Alexander Sverdlin <alexander.sverdlin@xxxxxxxxx>

--
Alexander Sverdlin.