From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: From: Greg Kroah-Hartman To: linux-kernel@vger.kernel.org Cc: Greg Kroah-Hartman , stable@vger.kernel.org, Alexander Stein , Marc Kleine-Budde , Ben Hutchings , Qiang Huang Subject: [PATCH 3.4 117/214] can: c_can: Set reserved bit in IFx_MASK2 to 1 on write Date: Wed, 4 Jun 2014 21:18:00 -0700 Message-Id: <20140605041655.406628034@linuxfoundation.org> In-Reply-To: <20140605041639.638675216@linuxfoundation.org> References: <20140605041639.638675216@linuxfoundation.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: 3.4-stable review patch. If anyone has any objections, please let me know. ------------------ From: Alexander Stein commit 2bd3bc4e8472424f1a6009825397639a8968920a upstream. According to C_CAN documentation, the reserved bit in IFx_MASK2 register is fixed 1. Signed-off-by: Alexander Stein Signed-off-by: Marc Kleine-Budde [bwh: Backported to 3.2: adjust context] Signed-off-by: Ben Hutchings Cc: Qiang Huang Signed-off-by: Greg Kroah-Hartman --- drivers/net/can/c_can/c_can.c | 6 +++++- 1 file changed, 5 insertions(+), 1 deletion(-) --- a/drivers/net/can/c_can/c_can.c +++ b/drivers/net/can/c_can/c_can.c @@ -446,8 +446,12 @@ static void c_can_setup_receive_object(s priv->write_reg(priv, &priv->regs->ifregs[iface].mask1, IFX_WRITE_LOW_16BIT(mask)); + + /* According to C_CAN documentation, the reserved bit + * in IFx_MASK2 register is fixed 1 + */ priv->write_reg(priv, &priv->regs->ifregs[iface].mask2, - IFX_WRITE_HIGH_16BIT(mask)); + IFX_WRITE_HIGH_16BIT(mask) | BIT(13)); priv->write_reg(priv, &priv->regs->ifregs[iface].arb1, IFX_WRITE_LOW_16BIT(id));