The patch titled Subject: kernel/sys_ni: add compat entry for fadvise64_64 has been added to the -mm mm-hotfixes-unstable branch. Its filename is kernel-sys_ni-add-compat-entry-for-fadvise64_64.patch
This patch will shortly appear at https://git.kernel.org/pub/scm/linux/kernel/git/akpm/25-new.git/tree/patches...
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: Randy Dunlap rdunlap@infradead.org Subject: kernel/sys_ni: add compat entry for fadvise64_64 Date: Sun, 7 Aug 2022 15:09:34 -0700
When CONFIG_ADVISE_SYSCALLS is not set/enabled and CONFIG_COMPAT is set/enabled, the riscv compat_syscall_table references 'compat_sys_fadvise64_64', which is not defined:
riscv64-linux-ld: arch/riscv/kernel/compat_syscall_table.o:(.rodata+0x6f8): undefined reference to `compat_sys_fadvise64_64'
Add 'fadvise64_64' to kernel/sys_ni.c as a conditional COMPAT function so that when CONFIG_ADVISE_SYSCALLS is not set, there is a fallback function available.
Link: https://lkml.kernel.org/r/20220807220934.5689-1-rdunlap@infradead.org Fixes: d3ac21cacc24 ("mm: Support compiling out madvise and fadvise") Signed-off-by: Randy Dunlap rdunlap@infradead.org Suggested-by: Arnd Bergmann arnd@arndb.de Reviewed-by: Arnd Bergmann arnd@arndb.de Cc: Josh Triplett josh@joshtriplett.org Cc: Paul Walmsley paul.walmsley@sifive.com Cc: Palmer Dabbelt palmer@dabbelt.com Cc: Albert Ou aou@eecs.berkeley.edu Cc: stable@vger.kernel.org Signed-off-by: Andrew Morton akpm@linux-foundation.org ---
kernel/sys_ni.c | 1 + 1 file changed, 1 insertion(+)
--- a/kernel/sys_ni.c~kernel-sys_ni-add-compat-entry-for-fadvise64_64 +++ a/kernel/sys_ni.c @@ -277,6 +277,7 @@ COND_SYSCALL(landlock_restrict_self);
/* mm/fadvise.c */ COND_SYSCALL(fadvise64_64); +COND_SYSCALL_COMPAT(fadvise64_64);
/* mm/, CONFIG_MMU only */ COND_SYSCALL(swapon); _
Patches currently in -mm which might be from rdunlap@infradead.org are
kernel-sys_ni-add-compat-entry-for-fadvise64_64.patch