Prevent a printk format warning by using %pap, which is designed for this purpose and can handle any size of resource_size_t. ../drivers/rtc/rtc-sunplus.c: In function 'sp_rtc_probe': ../drivers/rtc/rtc-sunplus.c:243:33: warning: format '%x' expects argument of type 'unsigned int', but argument 4 has type 'resource_size_t' {aka 'long long unsigned int'} [-Wformat=] 243 | dev_dbg(&plat_dev->dev, "res = 0x%x, reg_base = 0x%lx\n", Fixes: 0aa94eea8d95 ("ARM: sunplus: Add initial support for Sunplus SP7021 SoC") Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx> Cc: Qin Jian <qinjian@xxxxxxxxxxx> Cc: Arnd Bergmann <arnd@xxxxxxxx> Cc: Vincent Shih <vincent.sunplus@xxxxxxxxx> Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx> Cc: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx> Cc: linux-rtc@xxxxxxxxxxxxxxx --- drivers/rtc/rtc-sunplus.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff -- a/drivers/rtc/rtc-sunplus.c b/drivers/rtc/rtc-sunplus.c --- a/drivers/rtc/rtc-sunplus.c +++ b/drivers/rtc/rtc-sunplus.c @@ -240,8 +240,8 @@ static int sp_rtc_probe(struct platform_ if (IS_ERR(sp_rtc->reg_base)) return dev_err_probe(&plat_dev->dev, PTR_ERR(sp_rtc->reg_base), "%s devm_ioremap_resource fail\n", RTC_REG_NAME); - dev_dbg(&plat_dev->dev, "res = 0x%x, reg_base = 0x%lx\n", - sp_rtc->res->start, (unsigned long)sp_rtc->reg_base); + dev_dbg(&plat_dev->dev, "res = 0x%pap, reg_base = 0x%lx\n", + &sp_rtc->res->start, (unsigned long)sp_rtc->reg_base); sp_rtc->irq = platform_get_irq(plat_dev, 0); if (sp_rtc->irq < 0)