linux-kernel - [PATCH 2/2] iommu/sun50i: Constify sun50i_iommu

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Message-Id: <20200525214958.30015-3-rikard.falkeborn@gmail.com>
Date:   Mon, 25 May 2020 23:49:58 +0200
From:   Rikard Falkeborn <rikard.falkeborn@...il.com>
To:     Joerg Roedel <joro@...tes.org>
Cc:     iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org,
        Rikard Falkeborn <rikard.falkeborn@...il.com>,
        Maxime Ripard <mripard@...nel.org>,
        Chen-Yu Tsai <wens@...e.org>,
        linux-arm-kernel@...ts.infradead.org
Subject: [PATCH 2/2] iommu/sun50i: Constify sun50i_iommu_ops

The struct sun50i_iommu_ops is not modified and can be made const to
allow the compiler to put it in read-only memory.

Before:
   text    data     bss     dec     hex filename
  14358    2501      64   16923    421b drivers/iommu/sun50i-iommu.o

After:
   text    data     bss     dec     hex filename
  14726    2117      64   16907    420b drivers/iommu/sun50i-iommu.o

Signed-off-by: Rikard Falkeborn <rikard.falkeborn@...il.com>
---
 drivers/iommu/sun50i-iommu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iommu/sun50i-iommu.c b/drivers/iommu/sun50i-iommu.c
index 1fa09ddcebd4..fce605e96aa2 100644
--- a/drivers/iommu/sun50i-iommu.c
+++ b/drivers/iommu/sun50i-iommu.c
@@ -771,7 +771,7 @@ static int sun50i_iommu_of_xlate(struct device *dev,
 	return iommu_fwspec_add_ids(dev, &id, 1);
 }
 
-static struct iommu_ops sun50i_iommu_ops = {
+static const struct iommu_ops sun50i_iommu_ops = {
 	.pgsize_bitmap	= SZ_4K,
 	.attach_dev	= sun50i_iommu_attach_device,
 	.detach_dev	= sun50i_iommu_detach_device,
-- 
2.26.2