On Mon, 2021-09-27 at 14:18 +0200, Arnd Bergmann wrote:
> From: Arnd Bergmann <a...@arndb.de>
>
> clang-14 notices that a comparison is never true when
> CONFIG_PHYS_ADDR_T_64BIT is disabled:
>
> drivers/iommu/mtk_iommu.c:553:34: error: result of comparison of
> constant 5368709120 with expression of type 'phys_addr_t' (aka
> 'unsigned int') is always false [-Werror,-Wtautological-constant-out-
> of-range-compare]
> if (dom->data->enable_4GB && pa >=
> MTK_IOMMU_4GB_MODE_REMAP_BASE)
> ~~
> ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
>
> Add an explicit check for the type of the variable to skip the check
> and the warning in that case.
>
> Fixes: b4dad40e4f35 ("iommu/mediatek: Adjust the PA for the 4GB
> Mode")
> Signed-off-by: Arnd Bergmann <a...@arndb.de>
Reviewed-by: Yong Wu <yong...@mediatek.com>
Thanks.
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