linux-kernel - Re: [PATCH] dmaengine: owl-dma: fix clang -Wvoid-pointer-to-enum-cast warning

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Date:   Mon, 21 Aug 2023 19:21:51 +0530
From:   Vinod Koul <vkoul@...nel.org>
To:     Andreas Färber <afaerber@...e.de>,
        Manivannan Sadhasivam <mani@...nel.org>,
        Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        Tom Rix <trix@...hat.com>,
        Justin Stitt <justinstitt@...gle.com>
Cc:     dmaengine@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-actions@...ts.infradead.org, linux-kernel@...r.kernel.org,
        llvm@...ts.linux.dev
Subject: Re: [PATCH] dmaengine: owl-dma: fix clang
 -Wvoid-pointer-to-enum-cast warning


On Wed, 16 Aug 2023 20:12:50 +0000, Justin Stitt wrote:
> When building with clang 18 I see the following warning:
> |       drivers/dma/owl-dma.c:1119:14: warning: cast to smaller integer type
> |       'enum owl_dma_id' from 'const void *' [-Wvoid-pointer-to-enum-cast]
> |        1119 | od->devid = (enum owl_dma_id)of_device_get_match_data(&pdev->dev);
> 
> This is due to the fact that `of_device_get_match_data()` returns a
> void* while `enum owl_dma_id` has the size of an int.
> 
> [...]

Applied, thanks!

[1/1] dmaengine: owl-dma: fix clang -Wvoid-pointer-to-enum-cast warning
      commit: 1fbda5f4c7c1c8bd51cd3bc3d2ff19176c696b74

Best regards,
-- 
~Vinod