On 08.04.2021 21:50, Krzysztof Kozlowski wrote: > The Special Function Registers on all Exynos SoC, including ARM64, are > 32-bit wide, so entire driver uses matching functions like readl() or > writel(). On 64-bit ARM using unsigned long for register masks: > 1. makes little sense as immediately after bitwise operation it will be > cast to 32-bit value when calling writel(), > 2. is actually error-prone because it might promote other operands to > 64-bit. > > Addresses-Coverity: Unintentional integer overflow > Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlow...@canonical.com>
Reviewed-by: Sylwester Nawrocki <s.nawro...@samsung.com> > --- > > Not tested on ARM64. I have tested it on exynos5433/tm2e and didn't notice any issues as we could expect. The patch looks good to me, however I would personally use u32 rather than "unsigned int", like in other places for the register value variables. -- Regards, Sylwester
