[ARM] Allow gcc to optimise arm_add_memory a little more

For some reason, gcc was calculating meminfo.bank[meminfo.nr_banks]
repeatedly.  Use a pointer to it instead.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 7 insertions, 4 deletions

diff --git a/arch/arm/kernel/setup.c b/arch/arm/kernel/setup.c
index 29efc9f8205..75f1764933a 100644
--- a/arch/arm/kernel/setup.c
+++ b/arch/arm/kernel/setup.c
@@ -441,16 +441,19 @@ __early_param("initrd=", early_initrd);
 
 static void __init arm_add_memory(unsigned long start, unsigned long size)
 {
+        struct membank *bank;
+
         /*
          * Ensure that start/size are aligned to a page boundary.
          * Size is appropriately rounded down, start is rounded up.
          */
         size -= start & ~PAGE_MASK;
 
-        meminfo.bank[meminfo.nr_banks].start = PAGE_ALIGN(start);
-        meminfo.bank[meminfo.nr_banks].size  = size & PAGE_MASK;
-        meminfo.bank[meminfo.nr_banks].node  = PHYS_TO_NID(start);
-        meminfo.nr_banks += 1;
+        bank = &meminfo.bank[meminfo.nr_banks++];
+
+        bank->start = PAGE_ALIGN(start);
+        bank->size  = size & PAGE_MASK;
+        bank->node  = PHYS_TO_NID(start);
 }
 
 /*