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authorHeiko Carstens <heiko.carstens@de.ibm.com>2017-12-14 13:28:00 +0100
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2018-01-23 07:36:45 +0100
commit9797f14404fb21efbea62fe4cf8806f2fbdaaa23 (patch)
tree194ccf9459bc0a01b6ab043d53e45a26a6bb5f53 /arch/s390/kernel
parent0a12ed2c21c2e0909b3624fed9152f92ea5dfdc6 (diff)
downloadop-kernel-dev-9797f14404fb21efbea62fe4cf8806f2fbdaaa23.zip
op-kernel-dev-9797f14404fb21efbea62fe4cf8806f2fbdaaa23.tar.gz
s390: remove bogus system call table entries
The 64 bit system call table contains three entries that come without a matching NR_<name> entry in unistd.h. In fact all three of them do not make sense on 64 bit, but only for compat processes. llseek and mmap2 were specifically introduced for 32 bit / compat processes. getrlimit is wired up twice, so that only the entry that comes with a corresponding NR_getrlimit needs to be kept. The other entries can be removed, since it seems very unlikely that this will break user space. Reported-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/kernel')
-rw-r--r--arch/s390/kernel/syscalls.S6
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/s390/kernel/syscalls.S b/arch/s390/kernel/syscalls.S
index f7fc633..5e0cd16 100644
--- a/arch/s390/kernel/syscalls.S
+++ b/arch/s390/kernel/syscalls.S
@@ -85,7 +85,7 @@ SYSCALL(sys_sigsuspend,compat_sys_sigsuspend)
SYSCALL(sys_sigpending,compat_sys_sigpending)
SYSCALL(sys_sethostname,compat_sys_sethostname)
SYSCALL(sys_setrlimit,compat_sys_setrlimit) /* 75 */
-SYSCALL(sys_getrlimit,compat_sys_old_getrlimit)
+SYSCALL(sys_ni_syscall,compat_sys_old_getrlimit)
SYSCALL(sys_getrusage,compat_sys_getrusage)
SYSCALL(sys_gettimeofday,compat_sys_gettimeofday)
SYSCALL(sys_settimeofday,compat_sys_settimeofday)
@@ -149,7 +149,7 @@ SYSCALL(sys_s390_personality,sys_s390_personality)
NI_SYSCALL /* for afs_syscall */
SYSCALL(sys_ni_syscall,compat_sys_s390_setfsuid16) /* old setfsuid16 syscall */
SYSCALL(sys_ni_syscall,compat_sys_s390_setfsgid16) /* old setfsgid16 syscall */
-SYSCALL(sys_llseek,compat_sys_llseek) /* 140 */
+SYSCALL(sys_ni_syscall,compat_sys_llseek) /* 140 */
SYSCALL(sys_getdents,compat_sys_getdents)
SYSCALL(sys_select,compat_sys_select)
SYSCALL(sys_flock,sys_flock)
@@ -201,7 +201,7 @@ NI_SYSCALL /* streams1 */
NI_SYSCALL /* streams2 */
SYSCALL(sys_vfork,sys_vfork) /* 190 */
SYSCALL(sys_getrlimit,compat_sys_getrlimit)
-SYSCALL(sys_mmap2,compat_sys_s390_mmap2)
+SYSCALL(sys_ni_syscall,compat_sys_s390_mmap2)
SYSCALL(sys_ni_syscall,compat_sys_s390_truncate64)
SYSCALL(sys_ni_syscall,compat_sys_s390_ftruncate64)
SYSCALL(sys_ni_syscall,compat_sys_s390_stat64) /* 195 */
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