linux-kernel - [PATCH -next] gpu: host1x: Fix compile test failure

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Date:   Wed, 30 Oct 2019 21:54:58 +0800
From:   YueHaibing <yuehaibing@...wei.com>
To:     <thierry.reding@...il.com>, <mperttunen@...dia.com>,
        <arnd@...db.de>, <seanpaul@...omium.org>
CC:     <dri-devel@...ts.freedesktop.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, YueHaibing <yuehaibing@...wei.com>
Subject: [PATCH -next] gpu: host1x: Fix compile test failure

If IOMMU_SUPPORT is not set, but IOMMU_IOVA is m and
COMPILE_TEST is y, building fails:

drivers/gpu/host1x/dev.o: In function `host1x_remove':
dev.c:(.text+0x624): undefined reference to `put_iova_domain'
dev.c:(.text+0x624): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `put_iova_domain'
dev.c:(.text+0x62c): undefined reference to `iova_cache_put'
dev.c:(.text+0x62c): relocation truncated to fit: R_AARCH64_CALL26 against undefined symbol `iova_cache_put'

Select IOMMU_IOVA while COMPILE_TEST is set to fix this.

Reported-by: Hulk Robot <hulkci@...wei.com>
Fixes: 52499a6ad2ae ("gpu: host1x: select IOMMU_IOVA")
Signed-off-by: YueHaibing <yuehaibing@...wei.com>
---
 drivers/gpu/host1x/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/host1x/Kconfig b/drivers/gpu/host1x/Kconfig
index cf987a3..354232d 100644
--- a/drivers/gpu/host1x/Kconfig
+++ b/drivers/gpu/host1x/Kconfig
@@ -2,7 +2,7 @@
 config TEGRA_HOST1X
 	tristate "NVIDIA Tegra host1x driver"
 	depends on ARCH_TEGRA || (ARM && COMPILE_TEST)
-	select IOMMU_IOVA if IOMMU_SUPPORT
+	select IOMMU_IOVA if (IOMMU_SUPPORT || COMPILE_TEST)
 	help
 	  Driver for the NVIDIA Tegra host1x hardware.
 
-- 
2.7.4