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Message-Id: <1243389156-1668-1-git-send-email-Xiaotian.Feng@windriver.com> Date: Wed, 27 May 2009 09:52:36 +0800 From: Xiaotian Feng <Xiaotian.Feng@...driver.com> To: galak@...nel.crashing.org, davem@...emloft.net, netdev@...r.kernel.org Cc: linuxppc-dev@...abs.org, linux-kernel@...r.kernel.org Subject: [PATCH net] gianfar: fix babbling rx error event bug Gianfar interrupt handler uses IEVENT_ERR_MASK to check and handle errors. Babbling RX error (IEVENT_BABR) should be included in IEVENT_ERROR_MASK. Otherwise if BABR is raised, it never gets handled nor cleared, and an interrupt storm results. This has been observed to happen on sending a burst of ethernet frames to a gianfar based board. Signed-off-by: Xiaotian Feng <xiaotian.feng@...driver.com> --- drivers/net/gianfar.h | 2 +- 1 files changed, 1 insertions(+), 1 deletions(-) diff --git a/drivers/net/gianfar.h b/drivers/net/gianfar.h index 0642d52..cf35296 100644 --- a/drivers/net/gianfar.h +++ b/drivers/net/gianfar.h @@ -259,7 +259,7 @@ extern const char gfar_driver_version[]; (IEVENT_RXC | IEVENT_BSY | IEVENT_EBERR | IEVENT_MSRO | \ IEVENT_BABT | IEVENT_TXC | IEVENT_TXE | IEVENT_LC \ | IEVENT_CRL | IEVENT_XFUN | IEVENT_DPE | IEVENT_PERR \ - | IEVENT_MAG) + | IEVENT_MAG | IEVENT_BABR) #define IMASK_INIT_CLEAR 0x00000000 #define IMASK_BABR 0x80000000 -- 1.5.5.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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