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| author | Ankit Kumar <ankit@linux.vnet.ibm.com> | 2017-04-27 17:03:13 +0530 |
|---|---|---|
| committer | Kees Cook <keescook@chromium.org> | 2017-04-27 14:49:05 -0700 |
| commit | 041939c1ec54208b42f5cd819209173d52a29d34 (patch) | |
| tree | 1876321224442219eb6eef0d9fe8b21e0313489c | |
| parent | 3509d048c8a813a8f903ffd5f8dc5ca66e3d8716 (diff) | |
| download | linux-041939c1ec54208b42f5cd819209173d52a29d34.tar.bz2 | |
pstore: Fix flags to enable dumps on powerpc
After commit c950fd6f201a kernel registers pstore write based on flag set.
Pstore write for powerpc is broken as flags(PSTORE_FLAGS_DMESG) is not set for
powerpc architecture. On panic, kernel doesn't write message to
/fs/pstore/dmesg*(Entry doesn't gets created at all).
This patch enables pstore write for powerpc architecture by setting
PSTORE_FLAGS_DMESG flag.
Fixes: c950fd6f201a ("pstore: Split pstore fragile flags")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: Ankit Kumar <ankit@linux.vnet.ibm.com>
Signed-off-by: Kees Cook <keescook@chromium.org>
| -rw-r--r-- | arch/powerpc/kernel/nvram_64.c | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c index caf2e1f36d6b..eae61b044e9e 100644 --- a/arch/powerpc/kernel/nvram_64.c +++ b/arch/powerpc/kernel/nvram_64.c @@ -547,6 +547,7 @@ static ssize_t nvram_pstore_read(struct pstore_record *record) static struct pstore_info nvram_pstore_info = { .owner = THIS_MODULE, .name = "nvram", + .flags = PSTORE_FLAGS_DMESG, .open = nvram_pstore_open, .read = nvram_pstore_read, .write = nvram_pstore_write, |