iommu/exynos: prevent building on big-endian kernels (db3a7fd7) · Commits · 戴 / test

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: ("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>

drivers/iommu/Kconfig

+1 −0

Original line number	Diff line number	Diff line
		@@ -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

drivers/iommu/exynos-iommu.c

+0 −4

Original line number	Diff line number	Diff line
		@@ -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

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