While sys32_quotactl() is only needed on x86, it can use the recommended
COMPAT_SYSCALL_DEFINEx() machinery for its setup.

Acked-by: Jan Kara <[email protected]>
Cc: Christoph Hellwig <[email protected]>
Signed-off-by: Dominik Brodowski <[email protected]>
---
 arch/x86/entry/syscalls/syscall_32.tbl | 2 +-
 fs/quota/compat.c                      | 5 +++--
 include/linux/compat.h                 | 3 +++
 include/linux/syscalls.h               | 2 --
 kernel/sys_ni.c                        | 2 +-
 5 files changed, 8 insertions(+), 6 deletions(-)

diff --git a/arch/x86/entry/syscalls/syscall_32.tbl 
b/arch/x86/entry/syscalls/syscall_32.tbl
index ef6edaf285cd..c58f75b088c5 100644
--- a/arch/x86/entry/syscalls/syscall_32.tbl
+++ b/arch/x86/entry/syscalls/syscall_32.tbl
@@ -137,7 +137,7 @@
 128    i386    init_module             sys_init_module
 129    i386    delete_module           sys_delete_module
 130    i386    get_kernel_syms
-131    i386    quotactl                sys_quotactl                    
sys32_quotactl
+131    i386    quotactl                sys_quotactl                    
compat_sys_quotactl32
 132    i386    getpgid                 sys_getpgid
 133    i386    fchdir                  sys_fchdir
 134    i386    bdflush                 sys_bdflush
diff --git a/fs/quota/compat.c b/fs/quota/compat.c
index 1577a2fd51f4..c30572857619 100644
--- a/fs/quota/compat.c
+++ b/fs/quota/compat.c
@@ -41,8 +41,9 @@ struct compat_fs_quota_stat {
        __u16           qs_iwarnlimit;
 };
 
-asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
-                                               qid_t id, void __user *addr)
+COMPAT_SYSCALL_DEFINE4(quotactl32, unsigned int, cmd,
+                      const char __user *, special, qid_t, id,
+                      void __user *, addr)
 {
        unsigned int cmds;
        struct if_dqblk __user *dqblk;
diff --git a/include/linux/compat.h b/include/linux/compat.h
index 16c3027074a2..f1649a5e6716 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -461,6 +461,9 @@ asmlinkage ssize_t compat_sys_pwritev2(compat_ulong_t fd,
                const struct compat_iovec __user *vec,
                compat_ulong_t vlen, u32 pos_low, u32 pos_high, rwf_t flags);
 
+asmlinkage long compat_sys_quotactl32(unsigned int cmd,
+               const char __user *special, qid_t id, void __user *addr);
+
 #ifdef __ARCH_WANT_COMPAT_SYS_PREADV64
 asmlinkage long compat_sys_preadv64(unsigned long fd,
                const struct compat_iovec __user *vec,
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a63e21e7a3af..6ab7ed71a8b6 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -241,8 +241,6 @@ static inline void addr_limit_user_check(void)
 #endif
 }
 
-asmlinkage long sys32_quotactl(unsigned int cmd, const char __user *special,
-                              qid_t id, void __user *addr);
 asmlinkage long sys_time(time_t __user *tloc);
 asmlinkage long sys_stime(time_t __user *tptr);
 asmlinkage long sys_gettimeofday(struct timeval __user *tv,
diff --git a/kernel/sys_ni.c b/kernel/sys_ni.c
index b5189762d275..951dbda5c2b4 100644
--- a/kernel/sys_ni.c
+++ b/kernel/sys_ni.c
@@ -18,7 +18,7 @@ asmlinkage long sys_ni_syscall(void)
 }
 
 cond_syscall(sys_quotactl);
-cond_syscall(sys32_quotactl);
+cond_syscall(compat_sys_quotactl32);
 cond_syscall(sys_acct);
 cond_syscall(sys_lookup_dcookie);
 cond_syscall(compat_sys_lookup_dcookie);
-- 
2.16.3

Reply via email to