linux-kernel - [PATCH 5/5] dmaengine: mmp: Fix again Wvoid-pointer-to-enum-cast warning

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [day] [month] [year] [list]

Message-Id: <20250525-dma-fixes-v1-5-89d06dac9bcb@linaro.org>
Date: Sun, 25 May 2025 21:26:05 +0200
From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To: Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, 
 Vinod Koul <vkoul@...nel.org>, 
 Gustavo Pimentel <Gustavo.Pimentel@...opsys.com>, 
 Frank Li <Frank.Li@....com>, Rob Herring <robh@...nel.org>
Cc: dmaengine@...r.kernel.org, linux-kernel@...r.kernel.org, 
 linux-arm-msm@...r.kernel.org, 
 Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 5/5] dmaengine: mmp: Fix again Wvoid-pointer-to-enum-cast
 warning

This was fixed and re-introduced.  'type' is an enum, thus cast of
pointer on 64-bit compile test with W=1 causes:

  mmp_tdma.c:644:9: error: cast to smaller integer type 'enum mmp_tdma_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Fixes: a67ba97dfb30 ("dmaengine: Use device_get_match_data()")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/dma/mmp_tdma.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma/mmp_tdma.c b/drivers/dma/mmp_tdma.c
index c8dc504510f1e325017ba4fa5e7aa72b019e3be4..b7fb843c67a6f247395296fc726f7b6cab7d223f 100644
--- a/drivers/dma/mmp_tdma.c
+++ b/drivers/dma/mmp_tdma.c
@@ -641,7 +641,7 @@ static int mmp_tdma_probe(struct platform_device *pdev)
 	int chan_num = TDMA_CHANNEL_NUM;
 	struct gen_pool *pool = NULL;
 
-	type = (enum mmp_tdma_type)device_get_match_data(&pdev->dev);
+	type = (kernel_ulong_t)device_get_match_data(&pdev->dev);
 
 	/* always have couple channels */
 	tdev = devm_kzalloc(&pdev->dev, sizeof(*tdev), GFP_KERNEL);

-- 
2.45.2