The patch titled
Subject: mm/sparse: fix "unused function 'pgdat_to_phys'" warning
has been added to the -mm mm-unstable branch. Its filename is
mm-sparse-fix-unused-function-pgdat_to_phys-warning.patch
This patch will shortly appear at
https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches/mm-sparse-fix-unused-function-pgdat_to_phys-warning.patch
This patch will later appear in the mm-unstable branch at
git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
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------------------------------------------------------
From: Mike Rapoport <rppt@xxxxxxxxxx>
Subject: mm/sparse: fix "unused function 'pgdat_to_phys'" warning
Date: Sat, 21 Jan 2023 12:11:51 +0200
W=1 build with clangs complains:
mm/sparse.c:347:27: warning: unused function 'pgdat_to_phys' [-Wunused-function]
static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat)
^
1 warning generated.
pgdat_to_phys() is only used by functions defined when
CONFIG_MEMORY_HOTREMOVE=y.
Move pgdat_to_phys() under #ifdef CONFIG_MEMORY_HOTREMOVE
to make clang happy.
Link: https://lkml.kernel.org/r/20230121101151.1703292-1-rppt@xxxxxxxxxx
Signed-off-by: Mike Rapoport <rppt@xxxxxxxxxx>
Reported-by: kernel test robot <lkp@xxxxxxxxx>
Link: https://lore.kernel.org/all/202301210155.1E5zABb5-lkp@xxxxxxxxx
Cc: Miles Chen <miles.chen@xxxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
--- a/mm/sparse.c~mm-sparse-fix-unused-function-pgdat_to_phys-warning
+++ a/mm/sparse.c
@@ -318,6 +318,7 @@ size_t mem_section_usage_size(void)
return sizeof(struct mem_section_usage) + usemap_size();
}
+#ifdef CONFIG_MEMORY_HOTREMOVE
static inline phys_addr_t pgdat_to_phys(struct pglist_data *pgdat)
{
#ifndef CONFIG_NUMA
@@ -328,7 +329,6 @@ static inline phys_addr_t pgdat_to_phys(
#endif
}
-#ifdef CONFIG_MEMORY_HOTREMOVE
static struct mem_section_usage * __init
sparse_early_usemaps_alloc_pgdat_section(struct pglist_data *pgdat,
unsigned long size)
_
Patches currently in -mm which might be from rppt@xxxxxxxxxx are
mm-sparse-fix-unused-function-pgdat_to_phys-warning.patch
