linux-kernel - [PATCH 3/3] drivers: iommu: io-pgtable-arm: use const and __initconst for iommu_gather

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Message-Id: <1477418772-12184-4-git-send-email-bhumirks@gmail.com>
Date:   Tue, 25 Oct 2016 23:36:12 +0530
From:   Bhumika Goyal <bhumirks@...il.com>
To:     will.deacon@....com, robin.murphy@....com, joro@...tes.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
        iommu@...ts.linux-foundation.org, julia.lawall@...6.fr
Cc:     Bhumika Goyal <bhumirks@...il.com>
Subject: [PATCH 3/3] drivers: iommu: io-pgtable-arm: use const and __initconst for iommu_gather_ops structures

Check for iommu_gather_ops structures that are only stored in the tlb
field of an io_pgtable_cfg structure. The tlb field is of type
const struct iommu_gather_ops *, so iommu_gather_ops structures
having this property can be declared as const. Also, replace __initdata
with __initconst.

Signed-off-by: Bhumika Goyal <bhumirks@...il.com>
---
 drivers/iommu/io-pgtable-arm.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/io-pgtable-arm.c b/drivers/iommu/io-pgtable-arm.c
index f5c90e1..412e21d 100644
--- a/drivers/iommu/io-pgtable-arm.c
+++ b/drivers/iommu/io-pgtable-arm.c
@@ -916,7 +916,7 @@ static void dummy_tlb_sync(void *cookie)
 	WARN_ON(cookie != cfg_cookie);
 }
 
-static struct iommu_gather_ops dummy_tlb_ops __initdata = {
+static const struct iommu_gather_ops dummy_tlb_ops __initconst = {
 	.tlb_flush_all	= dummy_tlb_flush_all,
 	.tlb_add_flush	= dummy_tlb_add_flush,
 	.tlb_sync	= dummy_tlb_sync,
-- 
1.9.1