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authorRichard Weinberger <richard@nod.at>2015-10-25 20:28:14 +0100
committerRichard Weinberger <richard@nod.at>2015-11-06 22:49:10 +0100
commitf10e6d652bc2dad67b5e7b6e6d890c76f739ed77 (patch)
tree335e7780479d92f77a28c5cc552046074bdc7377 /arch/um
parentum: Store syscall number after syscall_trace_enter() (diff)
downloadlinux-f10e6d652bc2dad67b5e7b6e6d890c76f739ed77.tar.xz
linux-f10e6d652bc2dad67b5e7b6e6d890c76f739ed77.zip
um: Get rid of open coded NR_SYSCALLS
We can use __NR_syscall_max. Signed-off-by: Richard Weinberger <richard@nod.at>
Diffstat (limited to 'arch/um')
-rw-r--r--arch/um/kernel/skas/syscall.c8
1 files changed, 3 insertions, 5 deletions
diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index 64a8fe589d6f..1683b8efdfda 100644
--- a/arch/um/kernel/skas/syscall.c
+++ b/arch/um/kernel/skas/syscall.c
@@ -10,9 +10,6 @@
#include <sysdep/syscalls.h>
#include <os.h>
-extern int syscall_table_size;
-#define NR_SYSCALLS (syscall_table_size / sizeof(void *))
-
void handle_syscall(struct uml_pt_regs *r)
{
struct pt_regs *regs = container_of(r, struct pt_regs, regs);
@@ -26,9 +23,10 @@ void handle_syscall(struct uml_pt_regs *r)
syscall = get_syscall(r);
- if ((syscall >= NR_SYSCALLS) || (syscall < 0))
+ if ((syscall > __NR_syscall_max) || syscall < 0)
result = -ENOSYS;
- else result = EXECUTE_SYSCALL(syscall, regs);
+ else
+ result = EXECUTE_SYSCALL(syscall, regs);
out:
PT_REGS_SET_SYSCALL_RETURN(regs, result);