[next] mm/shmem.c:3993:5: error: conflicting types for 'shmem_unuse'; have 'int(unsigned int, long unsigned int *)'
[Please ignore this email if it already reported] A large number of build failures noticed on Linux next for all arch's with - tinyconfig - allnoconfig
Build Error: ------------- mm/shmem.c:3993:5: error: conflicting types for 'shmem_unuse'; have 'int(unsigned int, long unsigned int *)' 3993 | int shmem_unuse(unsigned int type, unsigned long *fs_pages_to_unuse) | ^~~~~~~~~~~ In file included from include/linux/khugepaged.h:6, from mm/shmem.c:37: include/linux/shmem_fs.h:86:5: note: previous declaration of 'shmem_unuse' with type 'int(unsigned int)' 86 | int shmem_unuse(unsigned int type); | ^~~~~~~~~~~ make[2]: *** [scripts/Makefile.build:289: mm/shmem.o] Error 1
Reported-by: Linux Kernel Functional Testing lkft@linaro.org
Build link: https://builds.tuxbuild.com/23GvPWRYOYokAPaEnhSYeOKuKCk/ Kconfig: https://builds.tuxbuild.com/23GvPWRYOYokAPaEnhSYeOKuKCk/config
Steps to reproduce: # To install tuxmake on your system globally: # sudo pip3 install -U tuxmake
tuxmake --runtime podman --target-arch x86_64 --toolchain gcc-11 --kconfig tinyconfig
-- Linaro LKFT https://lkft.linaro.org
On Wed, Jan 05, 2022 at 08:01:19PM +0530, Naresh Kamboju wrote:
mm/shmem.c:3993:5: error: conflicting types for 'shmem_unuse'; have 'int(unsigned int, long unsigned int *)' 3993 | int shmem_unuse(unsigned int type, unsigned long *fs_pages_to_unuse) | ^~~~~~~~~~~ In file included from include/linux/khugepaged.h:6, from mm/shmem.c:37: include/linux/shmem_fs.h:86:5: note: previous declaration of 'shmem_unuse' with type 'int(unsigned int)' 86 | int shmem_unuse(unsigned int type); | ^~~~~~~~~~~
This is "mm: simplify try_to_unuse" in akpm's tree.
It needs a fix that looks something like this:
+++ b/mm/shmem.c @@ -3990,7 +3990,7 @@ int __init shmem_init(void) return 0; }
-int shmem_unuse(unsigned int type, unsigned long *fs_pages_to_unuse) +int shmem_unuse(unsigned int type) { return 0; }
On 1/5/22 09:40, Matthew Wilcox wrote:
On Wed, Jan 05, 2022 at 08:01:19PM +0530, Naresh Kamboju wrote:
mm/shmem.c:3993:5: error: conflicting types for 'shmem_unuse'; have 'int(unsigned int, long unsigned int *)' 3993 | int shmem_unuse(unsigned int type, unsigned long *fs_pages_to_unuse) | ^~~~~~~~~~~ In file included from include/linux/khugepaged.h:6, from mm/shmem.c:37: include/linux/shmem_fs.h:86:5: note: previous declaration of 'shmem_unuse' with type 'int(unsigned int)' 86 | int shmem_unuse(unsigned int type); | ^~~~~~~~~~~
This is "mm: simplify try_to_unuse" in akpm's tree.
It needs a fix that looks something like this:
Acked-by: Randy Dunlap rdunlap@infradead.org # build-tested
thanks.
+++ b/mm/shmem.c @@ -3990,7 +3990,7 @@ int __init shmem_init(void) return 0; }
-int shmem_unuse(unsigned int type, unsigned long *fs_pages_to_unuse) +int shmem_unuse(unsigned int type) { return 0; }
-
Matthew Wilcox -
Naresh Kamboju -
Randy Dunlap