From 4ec7b666fb4247bc6b9cdc84fa753d8dc2994d25 Mon Sep 17 00:00:00 2001 From: Justin Stitt Date: Mon, 14 Aug 2023 22:21:51 +0000 Subject: [PATCH] power: vexpress: fix -Wvoid-pointer-to-enum-cast warning When building with clang 18 I see the following warning: | drivers/power/reset/vexpress-poweroff.c:124:10: warning: cast to smaller integer type 'enum vexpress_reset_func' from 'const void *' [-Wvoid-pointer-to-enum-cast] | 124 | switch ((enum vexpress_reset_func)match->data) { This is due to the fact that `match->data` is a void* while `enum vexpress_reset_func` has the size of an int. This leads to truncation and possible data loss. Link: https://github.com/ClangBuiltLinux/linux/issues/1910 Reported-by: Nathan Chancellor Signed-off-by: Justin Stitt Acked-by: Sudeep Holla Signed-off-by: Sebastian Reichel --- drivers/power/reset/vexpress-poweroff.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/power/reset/vexpress-poweroff.c b/drivers/power/reset/vexpress-poweroff.c index 447ffdacddf9d..17064d7b19f61 100644 --- a/drivers/power/reset/vexpress-poweroff.c +++ b/drivers/power/reset/vexpress-poweroff.c @@ -121,7 +121,7 @@ static int vexpress_reset_probe(struct platform_device *pdev) return PTR_ERR(regmap); dev_set_drvdata(&pdev->dev, regmap); - switch ((enum vexpress_reset_func)match->data) { + switch ((uintptr_t)match->data) { case FUNC_SHUTDOWN: vexpress_power_off_device = &pdev->dev; pm_power_off = vexpress_power_off; -- 2.30.2