linux-kernel - [PATCH 2/2] pstore/ram: Set pstore flags dynamically

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-Id: <1469016646-5512-2-git-send-email-namhyung@kernel.org>
Date:	Wed, 20 Jul 2016 21:10:46 +0900
From:	Namhyung Kim <namhyung@...nel.org>
To:	Kees Cook <keescook@...omium.org>
Cc:	LKML <linux-kernel@...r.kernel.org>,
	Anton Vorontsov <anton@...msg.org>,
	Colin Cross <ccross@...roid.com>,
	Tony Luck <tony.luck@...el.com>
Subject: [PATCH 2/2] pstore/ram: Set pstore flags dynamically

The ramoops can be configured to enable each pstore type by setting
their size.  In that case, it'd be better not to register disabled types
in the first place.

Signed-off-by: Namhyung Kim <namhyung@...nel.org>
---
 fs/pstore/ram.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/fs/pstore/ram.c b/fs/pstore/ram.c
index d08bfd611b11..80a4d44464fc 100644
--- a/fs/pstore/ram.c
+++ b/fs/pstore/ram.c
@@ -539,7 +539,13 @@ static int ramoops_probe(struct platform_device *pdev)
 		goto fail_clear;
 	}
 
-	cxt->pstore.flags = PSTORE_FLAGS_ALL;
+	cxt->pstore.flags = PSTORE_FLAGS_DMESG;
+	if (ctx->console_size)
+		cxt->pstore.flags |= PSTORE_FLAGS_CONOLE;
+	if (ctx->ftrace_size)
+		cxt->pstore.flags |= PSTORE_FLAGS_FTRACE;
+	if (ctx->pmsg_size)
+		cxt->pstore.flags |= PSTORE_FLAGS_PMSG;
 
 	err = pstore_register(&cxt->pstore);
 	if (err) {
-- 
2.8.0