Re: [PATCHv5 2/4] irqchip/tegra: Fix overflow implicit truncation warnings

From: Arnd Bergmann
Date: Mon Dec 06 2021 - 03:51:48 EST


On Mon, Dec 6, 2021 at 9:28 AM Sai Prakash Ranjan
<quic_saipraka@xxxxxxxxxxx> wrote:
>
> Fix -Woverflow warnings for tegra irqchip driver which is a result
> of moving arm64 custom MMIO accessor macros to asm-generic function
> implementations giving a bonus type-checking now and uncovering these
> overflow warnings.
>
> drivers/irqchip/irq-tegra.c: In function ‘tegra_ictlr_suspend’:
> drivers/irqchip/irq-tegra.c:151:18: warning: large integer implicitly truncated to unsigned type [-Woverflow]
> writel_relaxed(~0ul, ictlr + ICTLR_COP_IER_CLR);
> ^
>
> Cc: Marc Zyngier <maz@xxxxxxxxxx>
> Signed-off-by: Sai Prakash Ranjan <quic_saipraka@xxxxxxxxxxx>

Reviewed-by: Arnd Bergmann <arnd@xxxxxxxx>