microblaze: Use unsigned type for "for" loop because of comparison-kgdb.c

This patch removes warnings reported by W=1:
arch/microblaze/kernel/kgdb.c: In function 'pt_regs_to_gdb_regs':
arch/microblaze/kernel/kgdb.c:43:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
arch/microblaze/kernel/kgdb.c:51:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
arch/microblaze/kernel/kgdb.c: In function 'gdb_regs_to_pt_regs':
arch/microblaze/kernel/kgdb.c:77:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
arch/microblaze/kernel/kgdb.c: In function
'sleeping_thread_to_gdb_regs':
arch/microblaze/kernel/kgdb.c:99:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]
arch/microblaze/kernel/kgdb.c:103:16: warning: comparison between signed
and unsigned integer expressions [-Wsign-compare]

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

1 files changed, 4 insertions, 3 deletions

diff --git a/arch/microblaze/kernel/kgdb.c b/arch/microblaze/kernel/kgdb.c
index 4bd44b6cbc3b..8736af5806ae 100644
--- a/arch/microblaze/kernel/kgdb.c
+++ b/arch/microblaze/kernel/kgdb.c
@@ -36,9 +36,10 @@ struct pvr_s pvr;
 
 void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 {
-        int i;
+        unsigned int i;
         unsigned long *pt_regb = (unsigned long *)regs;
         int temp;
+
         /* registers r0 - r31, pc, msr, ear, esr, fsr + do not save pt_mode */
         for (i = 0; i < (sizeof(struct pt_regs) / 4) - 1; i++)
                 gdb_regs[i] = pt_regb[i];
@@ -68,7 +69,7 @@ void pt_regs_to_gdb_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 
 void gdb_regs_to_pt_regs(unsigned long *gdb_regs, struct pt_regs *regs)
 {
-        int i;
+        unsigned int i;
         unsigned long *pt_regb = (unsigned long *)regs;
 
         /* pt_regs and gdb_regs have the same 37 values.
@@ -92,7 +93,7 @@ asmlinkage void microblaze_kgdb_break(struct pt_regs *regs)
 /* untested */
 void sleeping_thread_to_gdb_regs(unsigned long *gdb_regs, struct task_struct *p)
 {
-        int i;
+        unsigned int i;
         unsigned long *pt_regb = (unsigned long *)(p->thread.regs);
 
         /* registers r0 - r31, pc, msr, ear, esr, fsr + do not save pt_mode */