We can use __NR_syscall_max.
Signed-off-by: Richard Weinberger <[email protected]>
---
arch/um/kernel/skas/syscall.c | 8 +++-----
1 file changed, 3 insertions(+), 5 deletions(-)
diff --git a/arch/um/kernel/skas/syscall.c b/arch/um/kernel/skas/syscall.c
index 64a8fe5..1683b8e 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);
--
1.8.4.5
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