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| author |   Arnd Bergmann <arnd@arndb.de> | 2017-07-28 15:19:19 +0200 |
|---|---|---|
| committer |   Joerg Roedel <jroedel@suse.de> | 2017-08-04 11:55:40 +0200 |
| commit | db3a7fd7a9027efac3e4f7cb2582e142cd6b9d47 (patch) | |
| tree | 4d0eb8fe6e911fcb5a575669144d5068934e1ac6 /drivers/iommu | |
| parent | iommu/exynos: Replace non-existing big-endian Kconfig option (diff) | |
| download | linux-dev-db3a7fd7a9027efac3e4f7cb2582e142cd6b9d47.tar.xz linux-dev-db3a7fd7a9027efac3e4f7cb2582e142cd6b9d47.zip | |
iommu/exynos: prevent building on big-endian kernels
Since we print the correct warning, an allmodconfig build is no longer
clean but always prints it, which defeats compile-testing:
drivers/iommu/exynos-iommu.c:58:2: error: #warning "revisit driver if we can enable big-endian ptes" [-Werror=cpp]
This replaces the #warning with a dependency, moving warning text into
a comment.
Fixes: 1f59adb1766d ("iommu/exynos: Replace non-existing big-endian Kconfig option")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Krzysztof Kozlowski <krzk@kernel.org>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu')
| -rw-r--r-- | drivers/iommu/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/iommu/exynos-iommu.c | 4 |
2 files changed, 1 insertions, 4 deletions
diff --git a/drivers/iommu/Kconfig b/drivers/iommu/Kconfig index f73ff28f77e2..c5d80fe3dab9 100644 --- a/drivers/iommu/Kconfig +++ b/drivers/iommu/Kconfig @@ -253,6 +253,7 @@ config TEGRA_IOMMU_SMMU config EXYNOS_IOMMU bool "Exynos IOMMU Support" depends on ARCH_EXYNOS && MMU + depends on !CPU_BIG_ENDIAN # revisit driver if we can enable big-endian ptes select IOMMU_API select ARM_DMA_USE_IOMMU help diff --git a/drivers/iommu/exynos-iommu.c b/drivers/iommu/exynos-iommu.c index b7aebaf28b82..c6b69e91132b 100644 --- a/drivers/iommu/exynos-iommu.c +++ b/drivers/iommu/exynos-iommu.c @@ -54,10 +54,6 @@ typedef u32 sysmmu_pte_t; #define lv2ent_small(pent) ((*(pent) & 2) == 2) #define lv2ent_large(pent) ((*(pent) & 3) == 1) -#ifdef CONFIG_CPU_BIG_ENDIAN -#warning "revisit driver if we can enable big-endian ptes" -#endif - /* * v1.x - v3.x SYSMMU supports 32bit physical and 32bit virtual address spaces * v5.0 introduced support for 36bit physical address space by shifting |