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watchdog: aspeed: fix 64-bit division

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commit 48a136639e upstream.

On 32-bit architectures, the new calculation causes a build failure:

ld.lld-21: error: undefined symbol: __aeabi_uldivmod

Since neither value is ever larger than a register, cast both
sides into a uintptr_t.

Fixes: 5c03f9f4d3 ("watchdog: aspeed: Update bootstatus handling")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reviewed-by: Guenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20250314160248.502324-1-arnd@kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Wim Van Sebroeck <wim@linux-watchdog.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Arnd Bergmann 2025-03-14 17:02:44 +01:00 committed by Greg Kroah-Hartman
parent c3e1091eb0
commit ecb9d3123b
1 changed files with 1 additions and 1 deletions
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2
drivers/watchdog/aspeed_wdt.c
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@ -254,7 +254,7 @@ static void aspeed_wdt_update_bootstatus(struct platform_device *pdev,
if (!of_device_is_compatible(pdev->dev.of_node, "aspeed,ast2400-wdt")) {
res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
idx = ((intptr_t)wdt->base & 0x00000fff) / resource_size(res);
idx = ((intptr_t)wdt->base & 0x00000fff) / (uintptr_t)resource_size(res);
}
scu_base = syscon_regmap_lookup_by_compatible(scu.compatible);