From e2dbbbe52c4a0f7704735b49f864fe8ea06111e5 Mon Sep 17 00:00:00 2001 From: Esben Haabendal Date: Thu, 17 Jun 2021 11:49:23 +0200 Subject: [PATCH] net: gianfar: Avoid 16 bytes of memset The memset on CAMx is wrong, as it actually unmasks all carry irq's, which we clearly are not interested in. The memset on CARx registers is just pointless, as they are W1C. So let's just stop the memset before CAR1. Signed-off-by: Esben Haabendal Signed-off-by: David S. Miller --- drivers/net/ethernet/freescale/gianfar.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/net/ethernet/freescale/gianfar.c b/drivers/net/ethernet/freescale/gianfar.c index ebd1065f39fa..4608c0c337bc 100644 --- a/drivers/net/ethernet/freescale/gianfar.c +++ b/drivers/net/ethernet/freescale/gianfar.c @@ -3098,7 +3098,7 @@ static void gfar_hw_init(struct gfar_private *priv) /* Zero out the rmon mib registers if it has them */ if (priv->device_flags & FSL_GIANFAR_DEV_HAS_RMON) { - memset_io(&(regs->rmon), 0, sizeof(struct rmon_mib)); + memset_io(®s->rmon, 0, offsetof(struct rmon_mib, car1)); /* Mask off the CAM interrupts */ gfar_write(®s->rmon.cam1, 0xffffffff);