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authorAnkit Kumar <ankit@linux.vnet.ibm.com>2017-04-27 17:03:13 +0530
committerKees Cook <keescook@chromium.org>2017-04-27 14:49:05 -0700
commit041939c1ec54208b42f5cd819209173d52a29d34 (patch)
tree1876321224442219eb6eef0d9fe8b21e0313489c /arch/powerpc/kernel/nvram_64.c
parent3509d048c8a813a8f903ffd5f8dc5ca66e3d8716 (diff)
downloadop-kernel-dev-041939c1ec54208b42f5cd819209173d52a29d34.zip
op-kernel-dev-041939c1ec54208b42f5cd819209173d52a29d34.tar.gz
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>
Diffstat (limited to 'arch/powerpc/kernel/nvram_64.c')
-rw-r--r--arch/powerpc/kernel/nvram_64.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/powerpc/kernel/nvram_64.c b/arch/powerpc/kernel/nvram_64.c
index caf2e1f..eae61b0 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,
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