From mboxrd@z Thu Jan 1 00:00:00 1970 From: Jakub Kicinski Subject: [PATCH net 2/4] nfp: print a message when mutex wait is interrupted Date: Wed, 11 Apr 2018 16:47:36 -0700 Message-ID: <20180411234738.6766-3-jakub.kicinski@netronome.com> References: <20180411234738.6766-1-jakub.kicinski@netronome.com> Cc: netdev@vger.kernel.org, oss-drivers@netronome.com, Jakub Kicinski To: davem@davemloft.net Return-path: Received: from mail-pl0-f66.google.com ([209.85.160.66]:46322 "EHLO mail-pl0-f66.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752646AbeDKXtY (ORCPT ); Wed, 11 Apr 2018 19:49:24 -0400 Received: by mail-pl0-f66.google.com with SMTP id 59-v6so2541489plc.13 for ; Wed, 11 Apr 2018 16:49:24 -0700 (PDT) In-Reply-To: <20180411234738.6766-1-jakub.kicinski@netronome.com> Sender: netdev-owner@vger.kernel.org List-ID: When waiting for an NFP mutex is interrupted print a message to make root causing later error messages easier. Signed-off-by: Jakub Kicinski Reviewed-by: Dirk van der Merwe --- drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c index f7b958181126..cb28ac03e4ca 100644 --- a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c +++ b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c @@ -211,8 +211,11 @@ int nfp_cpp_mutex_lock(struct nfp_cpp_mutex *mutex) break; err = msleep_interruptible(timeout_ms); - if (err != 0) + if (err != 0) { + nfp_info(mutex->cpp, + "interrupted waiting for NFP mutex\n"); return -ERESTARTSYS; + } if (time_is_before_eq_jiffies(warn_at)) { warn_at = jiffies + NFP_MUTEX_WAIT_NEXT_WARN * HZ; -- 2.16.2