From 307f5b8f764cfe34a317b59f5d572b169da8f6ef Mon Sep 17 00:00:00 2001 From: Randy Dunlap Date: Fri, 2 Dec 2022 11:59:56 +0800 Subject: [PATCH] kernel/sys_ni: add compat entry for fadvise64_64 stable inclusion from stable-v5.10.140 commit 665433b5ddc29901c2611c4bfd7ae56e402307eb category: bugfix bugzilla: https://gitee.com/openeuler/kernel/issues/I63FTT Reference: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?id=665433b5ddc29901c2611c4bfd7ae56e402307eb -------------------------------- commit a8faed3a02eeb75857a3b5d660fa80fe79db77a3 upstream. 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 Suggested-by: Arnd Bergmann Reviewed-by: Arnd Bergmann Cc: Josh Triplett Cc: Paul Walmsley Cc: Palmer Dabbelt Cc: Albert Ou Cc: Signed-off-by: Andrew Morton Signed-off-by: Greg Kroah-Hartman Signed-off-by: Zheng Zengkai Reviewed-by: Wei Li --- kernel/sys_ni.c | 1 + 1 file changed, 1 insertion(+) diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c index f27ac94d5fa7..cdecd47e5580 100644 --- a/kernel/sys_ni.c +++ b/kernel/sys_ni.c @@ -268,6 +268,7 @@ COND_SYSCALL_COMPAT(keyctl); /* mm/fadvise.c */ COND_SYSCALL(fadvise64_64); +COND_SYSCALL_COMPAT(fadvise64_64); /* mm/, CONFIG_MMU only */ COND_SYSCALL(swapon); -- GitLab