From 9025688bf6d427e553aca911308cd92e92634f51 Mon Sep 17 00:00:00 2001 From: Josh Poimboeuf Date: Mon, 20 Oct 2025 10:53:40 -0700 Subject: [PATCH] module: Fix device table module aliases 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 Reported-by: Marek Szyprowski Reported-by: Mark Brown Reported-by: Cosmin Tanislav Signed-off-by: Josh Poimboeuf Signed-off-by: Peter Zijlstra (Intel) Tested-by: Cosmin Tanislav Tested-by: Marek Szyprowski Tested-by: Mark Brown Tested-by: Alexander Stein Tested-by: Chen-Yu Tsai Tested-by: Anders Roxell Link: https://patch.msgid.link/e52ee3edf32874da645a9e037a7d77c69893a22a.1760982784.git.jpoimboe@kernel.org --- include/linux/module.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/module.h b/include/linux/module.h index e135cc79aceea..d80c3ea574726 100644 --- a/include/linux/module.h +++ b/include/linux/module.h @@ -251,10 +251,11 @@ struct module_kobject *lookup_or_create_module_kobject(const char *name); */ #define __mod_device_table(type, name) \ __PASTE(__mod_device_table__, \ + __PASTE(kmod_, \ __PASTE(__KBUILD_MODNAME, \ __PASTE(__, \ __PASTE(type, \ - __PASTE(__, name))))) + __PASTE(__, name)))))) /* Creates an alias so file2alias.c can find device table. */ #define MODULE_DEVICE_TABLE(type, name) \ -- 2.47.3