diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2015-12-04 11:30:45 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2015-12-04 11:30:45 -0800 |
| commit | fb39cbda147082a2e7dc4e2b5f3298448295e3c4 (patch) | |
| tree | 7dcbed6849a900f66f1d2a0b31d82721c6b4ed1e /arch | |
| parent | db281766baf4f88da2892f329381e9d9baa9756d (diff) | |
| parent | 6b577c9d772c45448aec784ec235cea228b4d3ad (diff) | |
Merge branch 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm
Pull libnvdimm fixes from Dan Williams:
- NFIT parsing regression fixes from Linda. The nvdimm hot-add
implementation merged in 4.4-rc1 interpreted the specification in a
way that breaks actual HPE platforms. We are also closing the loop
with the ACPI Working Group to get this clarification added to the
spec.
- Andy pointed out that his laptop without nvdimm resources is loading
the e820-nvdimm module by default, fix that up to only load the
module when an e820-type-12 range is present.
* 'libnvdimm-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/nvdimm/nvdimm:
nfit: Adjust for different _FIT and NFIT headers
nfit: Fix the check for a successful NFIT merge
nfit: Account for table size length variation
libnvdimm, e820: skip module loading when no type-12
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/x86/kernel/pmem.c | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/arch/x86/kernel/pmem.c b/arch/x86/kernel/pmem.c index 4f00b63d7ff3..14415aff1813 100644 --- a/arch/x86/kernel/pmem.c +++ b/arch/x86/kernel/pmem.c @@ -4,10 +4,22 @@ */ #include <linux/platform_device.h> #include <linux/module.h> +#include <linux/ioport.h> + +static int found(u64 start, u64 end, void *data) +{ + return 1; +} static __init int register_e820_pmem(void) { + char *pmem = "Persistent Memory (legacy)"; struct platform_device *pdev; + int rc; + + rc = walk_iomem_res(pmem, IORESOURCE_MEM, 0, -1, NULL, found); + if (rc <= 0) + return 0; /* * See drivers/nvdimm/e820.c for the implementation, this is |