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From: Marina Makienko <makienko@ispras.ru>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Cc: Marina Makienko <makienko@ispras.ru>,
	David Daney <david.daney@cavium.com>,
	Ralf Baechle <ralf@linux-mips.org>,
	"Roy.Li" <rongqing.li@windriver.com>,
	devel@driverdev.osuosl.org, linux-kernel@vger.kernel.org,
	ldv-project@ispras.ru
Subject: [PATCH] staging: octeon: Add prevent NAPI from scheduling
Date: Mon, 20 Aug 2012 14:41:22 +0400	[thread overview]
Message-ID: <1345459282-8666-1-git-send-email-makienko@ispras.ru> (raw)

Code inspection shows that this can
only be triggered by calling napi_enable() without
napi_disable().

Found by Linux Driver Verification project (linuxtesting.org).

Signed-off-by: Marina Makienko <makienko@ispras.ru>
---
 drivers/staging/octeon/ethernet-rx.c |    1 +
 1 files changed, 1 insertions(+), 0 deletions(-)

diff --git a/drivers/staging/octeon/ethernet-rx.c b/drivers/staging/octeon/ethernet-rx.c
index 34afc16..db81613 100644
--- a/drivers/staging/octeon/ethernet-rx.c
+++ b/drivers/staging/octeon/ethernet-rx.c
@@ -560,4 +560,5 @@ void cvm_oct_rx_shutdown(void)
 	/* Shutdown all of the NAPIs */
 	for_each_possible_cpu(i)
 		netif_napi_del(&cvm_oct_napi[i].napi);
+		napi_disable(&cvm_oct_napi[i].napi);
 }
-- 
1.7.7


             reply	other threads:[~2012-08-20 10:45 UTC|newest]

Thread overview: 5+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2012-08-20 10:41 Marina Makienko [this message]
2012-08-20 16:26 ` David Daney
2012-08-21  7:48   ` [PATCH] staging: octeon: Add prevent NAPI from scheduling IN-REPLY-TO: Marina Makienko
2012-08-21 11:18   ` Marina Makienko
2012-08-20 17:00 ` [PATCH] staging: octeon: Add prevent NAPI from scheduling Max Filippov

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