ARM: 5866/1: arm ptrace: use unsigned types for kernel pt_regs

Make registers unsigned for kernel space. This is important for
example in the perf events where the PC is stored into a u64. We
don't want it sign extended so make the regs unsigned to prevent
casts throughout the kernel.

Signed-off-by: Jamie Iles <jamie.iles@picochip.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/arm/include/asm/ptrace.h b/arch/arm/include/asm/ptrace.h
index bbecccda76d0..eec6e897ceb2 100644
--- a/arch/arm/include/asm/ptrace.h
+++ b/arch/arm/include/asm/ptrace.h
@@ -97,9 +97,15 @@
  * stack during a system call.  Note that sizeof(struct pt_regs)
  * has to be a multiple of 8.
  */
+#ifndef __KERNEL__
 struct pt_regs {
         long uregs[18];
 };
+#else /* __KERNEL__ */
+struct pt_regs {
+        unsigned long uregs[18];
+};
+#endif /* __KERNEL__ */
 
 #define ARM_cpsr        uregs[16]
 #define ARM_pc          uregs[15]