linux-kernel - [PATCH] iommu/renesas: fix unused-function warning

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Message-Id: <20200508220224.688985-1-arnd@arndb.de>
Date:   Sat,  9 May 2020 00:02:16 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Joerg Roedel <joro@...tes.org>
Cc:     Arnd Bergmann <arnd@...db.de>, Joerg Roedel <jroedel@...e.de>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        Yoshihiro Shimoda <yoshihiro.shimoda.uh@...esas.com>,
        Will Deacon <will@...nel.org>,
        Simon Horman <horms+renesas@...ge.net.au>,
        Robin Murphy <robin.murphy@....com>,
        Hai Nguyen Pham <hai.pham.ud@...esas.com>,
        iommu@...ts.linux-foundation.org, linux-kernel@...r.kernel.org
Subject: [PATCH] iommu/renesas: fix unused-function warning

gcc warns because the only reference to ipmmu_find_group
is inside of an #ifdef:

drivers/iommu/ipmmu-vmsa.c:878:28: error: 'ipmmu_find_group' defined but not used [-Werror=unused-function]

Change the #ifdef to an equivalent IS_ENABLED().

Fixes: 6580c8a78424 ("iommu/renesas: Convert to probe/release_device() call-backs")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/iommu/ipmmu-vmsa.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/drivers/iommu/ipmmu-vmsa.c b/drivers/iommu/ipmmu-vmsa.c
index fb7e702dee23..4c2972f3153b 100644
--- a/drivers/iommu/ipmmu-vmsa.c
+++ b/drivers/iommu/ipmmu-vmsa.c
@@ -903,11 +903,8 @@ static const struct iommu_ops ipmmu_ops = {
 	.probe_device = ipmmu_probe_device,
 	.release_device = ipmmu_release_device,
 	.probe_finalize = ipmmu_probe_finalize,
-#if defined(CONFIG_ARM) && !defined(CONFIG_IOMMU_DMA)
-	.device_group = generic_device_group,
-#else
-	.device_group = ipmmu_find_group,
-#endif
+	.device_group = IS_ENABLED(CONFIG_ARM) && !IS_ENABLED(CONFIG_IOMMU_DMA)
+			? generic_device_group : ipmmu_find_group,
 	.pgsize_bitmap = SZ_1G | SZ_2M | SZ_4K,
 	.of_xlate = ipmmu_of_xlate,
 };
-- 
2.26.0