linux-kernel - [PATCH 1/4] rtc: ds1307: fix Wvoid-pointer-to-enum-cast warning

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Message-Id: <20230810103902.151145-1-krzysztof.kozlowski@linaro.org>
Date:   Thu, 10 Aug 2023 12:38:59 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Alessandro Zummo <a.zummo@...ertech.it>,
        Alexandre Belloni <alexandre.belloni@...tlin.com>,
        Paul Cercueil <paul@...pouillou.net>,
        linux-rtc@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-mips@...r.kernel.org
Cc:     Andi Shyti <andi.shyti@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
Subject: [PATCH 1/4] rtc: ds1307: fix Wvoid-pointer-to-enum-cast warning

'type' is an enum, thus cast of pointer on 64-bit compile test with W=1
causes:

  rtc-ds1307.c:1747:18: error: cast to smaller integer type 'enum ds_type' from 'const void *' [-Werror,-Wvoid-pointer-to-enum-cast]

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
---
 drivers/rtc/rtc-ds1307.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/rtc/rtc-ds1307.c b/drivers/rtc/rtc-ds1307.c
index cb5acecc11aa..506b7d1c2397 100644
--- a/drivers/rtc/rtc-ds1307.c
+++ b/drivers/rtc/rtc-ds1307.c
@@ -1744,7 +1744,7 @@ static int ds1307_probe(struct i2c_client *client)
 
 	match = device_get_match_data(&client->dev);
 	if (match) {
-		ds1307->type = (enum ds_type)match;
+		ds1307->type = (uintptr_t)match;
 		chip = &chips[ds1307->type];
 	} else if (id) {
 		chip = &chips[id->driver_data];
-- 
2.34.1