commit 8543e6c96762fcc930af5725088c2b9e4865c3aa
author Michal Simek <michal.simek@xilinx.com> Thu Dec 18 15:41:13 2014 +0100
committer Michal Simek <michal.simek@xilinx.com> Mon Jan 05 12:36:43 2015 +0100
tree e8551350abb07213efd47632e44452de615f818a
parent f396a4d2314bf1cb83148d9b8fc47995e6c27e1f

microblaze: Use unsigned return type in do_syscall_trace_enter

Registers are not signed types.

The patch removes warnings:
arch/microblaze/kernel/ptrace.c: In function 'do_syscall_trace_enter':
arch/microblaze/kernel/ptrace.c:152:14: warning: signed and unsigned
type in conditional expression [-Wsign-compare]
  return ret ?: regs->r12;

Signed-off-by: Michal Simek <michal.simek@xilinx.com>

arch/microblaze/include/asm/syscall.h

diff --git a/arch/microblaze/include/asm/syscall.h b/arch/microblaze/include/asm/syscall.h
index 53cfaf3..04a5bec 100644
--- a/arch/microblaze/include/asm/syscall.h
+++ b/arch/microblaze/include/asm/syscall.h
@@ -97,7 +97,7 @@
 		microblaze_set_syscall_arg(regs, i++, *args++);
 }
 
-asmlinkage long do_syscall_trace_enter(struct pt_regs *regs);
+asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs);
 asmlinkage void do_syscall_trace_leave(struct pt_regs *regs);
 
 static inline int syscall_get_arch(void)

arch/microblaze/kernel/ptrace.c

diff --git a/arch/microblaze/kernel/ptrace.c b/arch/microblaze/kernel/ptrace.c
index bb10637..8cfa98c 100644
--- a/arch/microblaze/kernel/ptrace.c
+++ b/arch/microblaze/kernel/ptrace.c
@@ -132,9 +132,9 @@
 	return rval;
 }
 
-asmlinkage long do_syscall_trace_enter(struct pt_regs *regs)
+asmlinkage unsigned long do_syscall_trace_enter(struct pt_regs *regs)
 {
-	long ret = 0;
+	unsigned long ret = 0;
 
 	secure_computing_strict(regs->r12);