From a6b227d70d2ad9eb08adc3fe532ebb7ec88ac897 Mon Sep 17 00:00:00 2001 From: Yazen Ghannam Date: Tue, 26 Mar 2024 20:32:52 +0000 Subject: [PATCH] RAS: Avoid build errors when CONFIG_DEBUG_FS=n A new helper was introduced for RAS modules to be able to get the RAS subsystem debugfs root directory. The helper is defined in debugfs.c which is only built when CONFIG_DEBUG_FS=y. However, it's possible that the modules would include debugfs support for optional functionality. One current example is the fmpm module. In this case, a build error will occur when CONFIG_RAS_FMPM is selected and CONFIG_DEBUG_FS=n. Add an inline helper function stub for the CONFIG_DEBUG_FS=n case as the fmpm module can function without the debugfs functionality too. Fixes: 9d2b6fa09d15 ("RAS: Export helper to get ras_debugfs_dir") Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218640 Reported-by: anthony s. knowles Signed-off-by: Yazen Ghannam Signed-off-by: Borislav Petkov (AMD) Tested-by: anthony s. knowles Link: https://lore.kernel.org/r/20240325183755.776-1-bp@alien8.de --- drivers/ras/debugfs.h | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/ras/debugfs.h b/drivers/ras/debugfs.h index 4749ccdeeba1..5a2f48439258 100644 --- a/drivers/ras/debugfs.h +++ b/drivers/ras/debugfs.h @@ -4,6 +4,10 @@ #include +#if IS_ENABLED(CONFIG_DEBUG_FS) struct dentry *ras_get_debugfs_root(void); +#else +static inline struct dentry *ras_get_debugfs_root(void) { return NULL; } +#endif /* DEBUG_FS */ #endif /* __RAS_DEBUGFS_H__ */