x86/platform/calgary: Constify cal_chipset_ops structures

The cal_chipset_ops structures are never modified, so declare
them as const.

Done with the help of Coccinelle.

Signed-off-by: Julia Lawall <Julia.Lawall@lip6.fr>
Cc: Borislav Petkov <bp@alien8.de>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Jon D. Mason <jdmason@kudzu.us>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Muli Ben-Yehuda <muli@il.ibm.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Link: http://lkml.kernel.org/r/1448726295-10959-1-git-send-email-Julia.Lawall@lip6.fr
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/x86/include/asm/calgary.h

@@ -31,7 +31,7 @@
 #include <asm/types.h>
 
 struct iommu_table {
-	struct cal_chipset_ops *chip_ops; /* chipset specific funcs */
+	const struct cal_chipset_ops *chip_ops; /* chipset specific funcs */
 	unsigned long  it_base;      /* mapped address of tce table */
 	unsigned long  it_hint;      /* Hint for next alloc */
 	unsigned long *it_map;       /* A simple allocation bitmap for now */

arch/x86/kernel/pci-calgary_64.c

@@ -180,13 +180,13 @@ static void calioc2_dump_error_regs(struct iommu_table *tbl);
 static void calgary_init_bitmap_from_tce_table(struct iommu_table *tbl);
 static void get_tce_space_from_tar(void);
 
-static struct cal_chipset_ops calgary_chip_ops = {
+static const struct cal_chipset_ops calgary_chip_ops = {
 	.handle_quirks = calgary_handle_quirks,
 	.tce_cache_blast = calgary_tce_cache_blast,
 	.dump_error_regs = calgary_dump_error_regs
 };
 
-static struct cal_chipset_ops calioc2_chip_ops = {
+static const struct cal_chipset_ops calioc2_chip_ops = {
 	.handle_quirks = calioc2_handle_quirks,
 	.tce_cache_blast = calioc2_tce_cache_blast,
 	.dump_error_regs = calioc2_dump_error_regs