From 041939c1ec54208b42f5cd819209173d52a29d34 Mon Sep 17 00:00:00 2001 From: Ankit Kumar Date: Thu, 27 Apr 2017 17:03:13 +0530 Subject: [PATCH] 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 Signed-off-by: Kees Cook --- arch/powerpc/kernel/nvram_64.c | 1 + 1 file changed, 1 insertion(+) 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,