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 <[email protected]>
Reported-by: Marek Szyprowski <[email protected]>
Reported-by: Mark Brown <[email protected]>
Reported-by: Cosmin Tanislav <[email protected]>
Signed-off-by: Josh Poimboeuf <[email protected]>
---
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)
\
--
2.51.0
