The patch titled Subject: include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used has been removed from the -mm tree. Its filename was asm-generic-fix-variable-p4d-set-but-not-used.patch This patch was dropped because it was merged into mainline or a subsystem tree ------------------------------------------------------ From: Qian Cai <cai@xxxxxx> Subject: include/asm-generic/5level-fixup.h: fix variable 'p4d' set but not used A compiler throws a warning on an arm64 system since commit 9849a5697d3d ("arch, mm: convert all architectures to use 5level-fixup.h"), mm/kasan/init.c: In function 'kasan_free_p4d': mm/kasan/init.c:344:9: warning: variable 'p4d' set but not used [-Wunused-but-set-variable] p4d_t *p4d; ^~~ because p4d_none() in "5level-fixup.h" is compiled away while it is a static inline function in "pgtable-nopud.h". However, if converted p4d_none() to a static inline there, powerpc would be unhappy as it reads those in assembler language in "arch/powerpc/include/asm/book3s/64/pgtable.h", so it needs to skip assembly include for the static inline C function. While at it, converted a few similar functions to be consistent with the ones in "pgtable-nopud.h". Link: http://lkml.kernel.org/r/20190806232917.881-1-cai@xxxxxx Signed-off-by: Qian Cai <cai@xxxxxx> Acked-by: Arnd Bergmann <arnd@xxxxxxxx> Cc: Kirill A. Shutemov <kirill.shutemov@xxxxxxxxxxxxxxx> Cc: Michal Hocko <mhocko@xxxxxxxx> Cc: Jason Gunthorpe <jgg@xxxxxxxx> Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx> --- include/asm-generic/5level-fixup.h | 21 ++++++++++++++++++--- 1 file changed, 18 insertions(+), 3 deletions(-) --- a/include/asm-generic/5level-fixup.h~asm-generic-fix-variable-p4d-set-but-not-used +++ a/include/asm-generic/5level-fixup.h @@ -19,9 +19,24 @@ #define p4d_alloc(mm, pgd, address) (pgd) #define p4d_offset(pgd, start) (pgd) -#define p4d_none(p4d) 0 -#define p4d_bad(p4d) 0 -#define p4d_present(p4d) 1 + +#ifndef __ASSEMBLY__ +static inline int p4d_none(p4d_t p4d) +{ + return 0; +} + +static inline int p4d_bad(p4d_t p4d) +{ + return 0; +} + +static inline int p4d_present(p4d_t p4d) +{ + return 1; +} +#endif + #define p4d_ERROR(p4d) do { } while (0) #define p4d_clear(p4d) pgd_clear(p4d) #define p4d_val(p4d) pgd_val(p4d) _ Patches currently in -mm which might be from cai@xxxxxx are mm-kmemleak-record-the-current-memory-pool-size.patch mm-kmemleak-increase-the-max-mem-pool-to-1m.patch writeback-fix-wstringop-truncation-warnings.patch