The patch titled
Subject: zsmalloc: avoid unused-function warning
has been added to the -mm mm-hotfixes-unstable branch. Its filename is
zsmalloc-fix-a-race-with-deferred_handles-storing-fix.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/zsmalloc-fix-a-race-with-deferred_handles-storing-fix.patch
This patch will later appear in the mm-hotfixes-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Arnd Bergmann <arnd@xxxxxxxx>
Subject: zsmalloc: avoid unused-function warning
Date: Tue, 17 Jan 2023 18:04:59 +0100
obj_allocated() can be called from two places that are each inside of an
#ifdef. When both are disabled, the compiler warns:
mm/zsmalloc.c:900:13: error: 'obj_allocated' defined but not used [-Werror=unused-function]
Rather than trying to figure out the correct #ifdef, mark the trivial
function as 'inline', which implies __maybe_unused and shuts up the
warning.
Link: https://lkml.kernel.org/r/20230117170507.2651972-1-arnd@xxxxxxxxxx
Fixes: 796c71ac728e ("zsmalloc: fix a race with deferred_handles storing")
Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>
Reviewed-by: Sergey Senozhatsky <senozhatsky@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/zsmalloc.c~zsmalloc-fix-a-race-with-deferred_handles-storing-fix
+++ a/mm/zsmalloc.c
@@ -937,7 +937,7 @@ static bool obj_tagged(struct page *page
return true;
}
-static bool obj_allocated(struct page *page, void *obj, unsigned long *phandle)
+static inline bool obj_allocated(struct page *page, void *obj, unsigned long *phandle)
{
return obj_tagged(page, obj, phandle, OBJ_ALLOCATED_TAG);
}
_
Patches currently in -mm which might be from arnd@xxxxxxxx are
zsmalloc-fix-a-race-with-deferred_handles-storing-fix.patch
