linux-kernel - [PATCH 3/7] um: Get rid of open coded NR

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Date:	Mon, 26 Oct 2015 10:48:13 +0100
From:	Richard Weinberger <richard@....at>
To:	user-mode-linux-devel@...ts.sourceforge.net
Cc:	linux-kernel@...r.kernel.org, Richard Weinberger <richard@....at>
Subject: [PATCH 3/7] um: Get rid of open coded NR_SYSCALLS

We can use __NR_syscall_max.

Signed-off-by: Richard Weinberger <richard@....at>
---
 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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