From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from ozlabs.org (ozlabs.org [103.22.144.67]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id AE57B1A043C for ; Tue, 19 Aug 2014 14:48:07 +1000 (EST) From: Michael Neuling To: Benjamin Herrenschmidt , Michael Ellerman Subject: [PATCH 4/4] powerpc/powernv: Check OPAL dump calls exist before using Date: Tue, 19 Aug 2014 14:48:02 +1000 Message-Id: <1408423682-14297-4-git-send-email-mikey@neuling.org> In-Reply-To: <1408423682-14297-1-git-send-email-mikey@neuling.org> References: <1408423682-14297-1-git-send-email-mikey@neuling.org> Cc: Stewart Smith , linuxppc-dev@lists.ozlabs.org List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Check that the OPAL_DUMP_READ token exists before initalising the elog infrastructure. This avoids littering the OPAL console with: "OPAL: Called with bad token 91" Signed-off-by: Michael Neuling --- arch/powerpc/platforms/powernv/opal-dump.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/arch/powerpc/platforms/powernv/opal-dump.c b/arch/powerpc/platforms/powernv/opal-dump.c index 85bb8ff..c7577f9 100644 --- a/arch/powerpc/platforms/powernv/opal-dump.c +++ b/arch/powerpc/platforms/powernv/opal-dump.c @@ -423,6 +423,10 @@ void __init opal_platform_dump_init(void) { int rc; + /* ELOG not supported by firmware */ + if (!opal_check_token(OPAL_DUMP_READ)) + return; + dump_kset = kset_create_and_add("dump", NULL, opal_kobj); if (!dump_kset) { pr_warn("%s: Failed to create dump kset\n", __func__); -- 1.9.1