Commit 041939c1 authored by Ankit Kumar's avatar Ankit Kumar Committed by Kees Cook

pstore: Fix flags to enable dumps on powerpc

After commit c950fd6f 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: c950fd6f ("pstore: Split pstore fragile flags")
Cc: stable@vger.kernel.org # v4.9+
Signed-off-by: default avatarAnkit Kumar <ankit@linux.vnet.ibm.com>
Signed-off-by: default avatarKees Cook <keescook@chromium.org>
parent 3509d048
...@@ -547,6 +547,7 @@ static ssize_t nvram_pstore_read(struct pstore_record *record) ...@@ -547,6 +547,7 @@ static ssize_t nvram_pstore_read(struct pstore_record *record)
static struct pstore_info nvram_pstore_info = { static struct pstore_info nvram_pstore_info = {
.owner = THIS_MODULE, .owner = THIS_MODULE,
.name = "nvram", .name = "nvram",
.flags = PSTORE_FLAGS_DMESG,
.open = nvram_pstore_open, .open = nvram_pstore_open,
.read = nvram_pstore_read, .read = nvram_pstore_read,
.write = nvram_pstore_write, .write = nvram_pstore_write,
......
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