Re: [PATCH] module: Fix device table module aliases

[Chen-Yu Tsai]

On Mon, Oct 20, 2025 at 10:53:40AM -0700, Josh Poimboeuf wrote:
> Commit 6717e8f91db7 ("kbuild: Remove 'kmod_' prefix from
> __KBUILD_MODNAME") inadvertently broke module alias generation for
> modules which rely on MODULE_DEVICE_TABLE().
> 
> It removed the "kmod_" prefix from __KBUILD_MODNAME, which caused
> MODULE_DEVICE_TABLE() to generate a symbol name which no longer matched
> the format expected by handle_moddevtable() in scripts/mod/file2alias.c.
> 
> As a result, modpost failed to find the device tables, leading to
> missing module aliases.
> 
> Fix this by explicitly adding the "kmod_" string within the
> MODULE_DEVICE_TABLE() macro itself, restoring the symbol name to the
> format expected by file2alias.c.
> 
> Fixes: 6717e8f91db7 ("kbuild: Remove 'kmod_' prefix from __KBUILD_MODNAME")
> Reported-by: Alexander Stein <alexander.stein@xxxxxxxxxxxxxxx>
> Reported-by: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx>
> Reported-by: Mark Brown <broonie@xxxxxxxxxx>
> Reported-by: Cosmin Tanislav <demonsingur@xxxxxxxxx>
> Signed-off-by: Josh Poimboeuf <jpoimboe@xxxxxxxxxx>

Tested-by: Chen-Yu Tsai <wenst@xxxxxxxxxxxx>