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authorArnd Bergmann <arnd@arndb.de>2016-02-23 00:58:34 +0300
committerDan Williams <dan.j.williams@intel.com>2016-02-24 04:17:20 +0300
commitc45442055dfdeb265cc20c9eeaa9fd11a75fbf51 (patch)
treeec9c304ceb425db702af367028cb9861684fe30e /drivers/nvdimm/pmem.c
parent93f834df9c2d4e362dfdc4b05daa0a4e18814836 (diff)
downloadlinux-c45442055dfdeb265cc20c9eeaa9fd11a75fbf51.tar.xz
nvdimm: use 'u64' for pfn flags
A recent bugfix changed pfn_t to always be 64-bit wide, but did not change the code in pmem.c, which is now broken on 32-bit architectures as reported by gcc: In file included from ../drivers/nvdimm/pmem.c:28:0: drivers/nvdimm/pmem.c: In function 'pmem_alloc': include/linux/pfn_t.h:15:17: error: large integer implicitly truncated to unsigned type [-Werror=overflow] #define PFN_DEV (1ULL << (BITS_PER_LONG_LONG - 3)) This changes the intermediate pfn_flags in struct pmem_device to be 64 bit wide as well, so they can store the flags correctly. Signed-off-by: Arnd Bergmann <arnd@arndb.de> Fixes: db78c22230d0 ("mm: fix pfn_t vs highmem") Signed-off-by: Dan Williams <dan.j.williams@intel.com>
Diffstat (limited to 'drivers/nvdimm/pmem.c')
-rw-r--r--drivers/nvdimm/pmem.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/nvdimm/pmem.c b/drivers/nvdimm/pmem.c
index 7edf31671dab..8d0b54670184 100644
--- a/drivers/nvdimm/pmem.c
+++ b/drivers/nvdimm/pmem.c
@@ -41,7 +41,7 @@ struct pmem_device {
phys_addr_t phys_addr;
/* when non-zero this device is hosting a 'pfn' instance */
phys_addr_t data_offset;
- unsigned long pfn_flags;
+ u64 pfn_flags;
void __pmem *virt_addr;
size_t size;
struct badblocks bb;