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From:   Kees Cook <keescook@chromium.org>
To:     WeiXiong Liao <liaoweixiong@allwinnertech.com>
Cc:     Kees Cook <keescook@chromium.org>,
        Anton Vorontsov <anton@enomsg.org>,
        Colin Cross <ccross@android.com>,
        Tony Luck <tony.luck@intel.com>,
        Jonathan Corbet <corbet@lwn.net>,
        Miquel Raynal <miquel.raynal@bootlin.com>,
        Richard Weinberger <richard@nod.at>,
        Vignesh Raghavendra <vigneshr@ti.com>,
        Petr Mladek <pmladek@suse.com>,
        Sergey Senozhatsky <sergey.senozhatsky@gmail.com>,
        Steven Rostedt <rostedt@goodmis.org>,
        Rob Herring <robh@kernel.org>,
        Pavel Tatashin <pasha.tatashin@soleen.com>,
        linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org,
        linux-mtd@lists.infradead.org
Subject: [PATCH v7 04/18] pstore/platform: Use backend name for console registration
Date:   Sun, 10 May 2020 13:24:22 -0700
Message-Id: <20200510202436.63222-5-keescook@chromium.org>
In-Reply-To: <20200510202436.63222-1-keescook@chromium.org>
References: <20200510202436.63222-1-keescook@chromium.org>
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Sender: linux-kernel-owner@vger.kernel.org
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If the pstore backend changes, there's no indication in the logs what
the console is (it always says "pstore"). Instead, pass through the
active backend's name.

Signed-off-by: Kees Cook <keescook@chromium.org>
---
 fs/pstore/platform.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/pstore/platform.c b/fs/pstore/platform.c
index bf7fa7b278bd..90d146fbc7d2 100644
--- a/fs/pstore/platform.c
+++ b/fs/pstore/platform.c
@@ -519,13 +519,15 @@ static void pstore_console_write(struct console *con, const char *s, unsigned c)
 }
 
 static struct console pstore_console = {
-	.name	= "pstore",
 	.write	= pstore_console_write,
 	.index	= -1,
 };
 
 static void pstore_register_console(void)
 {
+	/* Show which backend is going to get console writes. */
+	strscpy(pstore_console.name, psinfo->name,
+		sizeof(pstore_console.name));
 	/*
 	 * Always initialize flags here since prior unregister_console()
 	 * calls may have changed settings (specifically CON_ENABLED).
-- 
2.20.1