The patch titled
rtc-ds1742.c should use resource_size_t for base address
has been added to the -mm tree. Its filename is
rtc-ds1742c-should-use-resource_size_t-for-base-address.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: rtc-ds1742.c should use resource_size_t for base address
From: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
Currently the rtc driver, rtc-ds1742.c uses an unsigned long to store the
base mmio address of the NVRAM/RTC. This breaks on systems like PowerPC
440, which is a 32-bit core with 36-bit physical addresses: IO on the
system, including the RTC, is typically above the 4GB point, and cannot fit
into an unsigned long.
This patch fixes the problem by replacing the unsigned long with a
resource_size_t. Tested on Ebony (PPC440) (with additional patches to
instantiate the ds1742 platform device appropriately).
Signed-off-by: David Gibson <david@xxxxxxxxxxxxxxxxxxxxx>
Acked-by: Atsushi Nemoto <anemo@xxxxxxxxxxxxx>
Cc: Alessandro Zummo <a.zummo@xxxxxxxxxxxx>
Cc: David Brownell <david-b@xxxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/rtc/rtc-ds1742.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/rtc/rtc-ds1742.c~rtc-ds1742c-should-use-resource_size_t-for-base-address drivers/rtc/rtc-ds1742.c
--- a/drivers/rtc/rtc-ds1742.c~rtc-ds1742c-should-use-resource_size_t-for-base-address
+++ a/drivers/rtc/rtc-ds1742.c
@@ -55,7 +55,7 @@ struct rtc_plat_data {
void __iomem *ioaddr_rtc;
size_t size_nvram;
size_t size;
- unsigned long baseaddr;
+ resource_size_t baseaddr;
unsigned long last_jiffies;
};
_
Patches currently in -mm which might be from david@xxxxxxxxxxxxxxxxxxxxx are
rtc-ds1742c-should-use-resource_size_t-for-base-address.patch
git-powerpc.patch
ppc-remove-apus-support.patch
hugetlb-allow-extending-ftruncate-on-hugetlbfs.patch
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