From: Jakub Kicinski Date: Wed, 11 Apr 2018 23:47:36 +0000 (-0700) Subject: nfp: print a message when mutex wait is interrupted X-Git-Tag: v4.19~1163^2~39^2~2 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=bc05f9bcd8cb62f935625850e535da183b4a07c0;p=platform%2Fkernel%2Flinux-rpi.git nfp: print a message when mutex wait is interrupted 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 Signed-off-by: David S. Miller --- diff --git a/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c b/drivers/net/ethernet/netronome/nfp/nfpcore/nfp_mutex.c index f7b9581..cb28ac0 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;