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IB/hfi1: constify mmu_notifier_ops structure

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Declare the structure mmu_notifier_ops as const as it is only stored in
the ops field of a mmu_notifier structure. The ops field is of type
const struct mmu_notifier_ops *, so mmu_notifier_ops structures having
this property can be declared as const.
Done using coccinelle:
@r1 disable optional_qualifier @
identifier i;
position p;
@@
static struct mmu_notifier_ops i@p = {...};

@ok1@
identifier r1.i;
position p;
struct mmu_rb_handler handler;
@@
handler.mn.ops=&i@p

@bad@
position p!={r1.p,ok1.p};
identifier r1.i;
@@
i@p

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
static
+const
struct mmu_notifier_ops i={...};

@depends on !bad disable optional_qualifier@
identifier r1.i;
@@
+const
struct mmu_notifier_ops i;

File size before:
   text	   data	    bss	    dec	    hex	filename
   3566	     72	     16	   3654	    e46
drivers/infiniband/hw/hfi1/mmu_rb.o

File size after:
   text	   data	    bss	    dec	    hex	filename
   3658	      0	     16	   3674	    e5a
drivers/infiniband/hw/hfi1/mmu_rb.o

Signed-off-by: Bhumika Goyal <bhumirks@gmail.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Bhumika Goyal 2016-11-19 15:17:48 +05:30 committed by Doug Ledford
parent 5dc806052a
commit 0fc859a657
1 changed files with 1 additions and 1 deletions
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2
drivers/infiniband/hw/hfi1/mmu_rb.c
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@ -81,7 +81,7 @@ static void do_remove(struct mmu_rb_handler *handler,
struct list_head *del_list);
static void handle_remove(struct work_struct *work);
static struct mmu_notifier_ops mn_opts = {
static const struct mmu_notifier_ops mn_opts = {
.invalidate_page = mmu_notifier_page,
.invalidate_range_start = mmu_notifier_range_start,
};