From 8f4b6e35e270b3dca8943cf1a2de8d40b6074272 Mon Sep 17 00:00:00 2001 From: Sebastian Andrzej Siewior Date: Mon, 30 Nov 2020 11:09:50 +0100 Subject: [PATCH] s390/ctcm: Use GFP_ATOMIC in ctcmpc_tx(). gfp_type() uses in_interrupt() to figure out the correct GFP mask. The usage of in_interrupt() in drivers is phased out and Linus clearly requested that code which changes behaviour depending on context should either be separated or the context be conveyed in an argument passed by the caller, which usually knows the context. ctcmpc_tx() is used as net_device_ops::ndo_start_xmit. This callback is invoked with disabled bottom halves. Use GFP_ATOMIC for memory allocation in ctcmpc_tx(). Remove gfp_type() since the last user is gone. Reviewed-by: Julian Wiedmann Signed-off-by: Sebastian Andrzej Siewior Signed-off-by: Julian Wiedmann Signed-off-by: Jakub Kicinski --- drivers/s390/net/ctcm_main.c | 2 +- drivers/s390/net/ctcm_main.h | 5 ----- 2 files changed, 1 insertion(+), 6 deletions(-) diff --git a/drivers/s390/net/ctcm_main.c b/drivers/s390/net/ctcm_main.c index c446883de5c8e..fd705429708e8 100644 --- a/drivers/s390/net/ctcm_main.c +++ b/drivers/s390/net/ctcm_main.c @@ -903,7 +903,7 @@ static int ctcmpc_tx(struct sk_buff *skb, struct net_device *dev) CTCM_D3_DUMP((char *)skb->data, min_t(int, 32, skb->len)); len = skb->len + TH_HEADER_LENGTH + PDU_HEADER_LENGTH; - newskb = __dev_alloc_skb(len, gfp_type() | GFP_DMA); + newskb = __dev_alloc_skb(len, GFP_ATOMIC | GFP_DMA); if (!newskb) { CTCM_DBF_TEXT_(MPC_TRACE, CTC_DBF_ERROR, diff --git a/drivers/s390/net/ctcm_main.h b/drivers/s390/net/ctcm_main.h index 16bdf23ee02b1..90bd7b3f80c31 100644 --- a/drivers/s390/net/ctcm_main.h +++ b/drivers/s390/net/ctcm_main.h @@ -298,11 +298,6 @@ struct mpc_group *ctcmpc_init_mpc_group(struct ctcm_priv *priv); /* test if struct ctcm_priv of struct net_device has MPC protocol setting */ #define IS_MPCDEV(dev) IS_MPC((struct ctcm_priv *)dev->ml_priv) -static inline gfp_t gfp_type(void) -{ - return in_interrupt() ? GFP_ATOMIC : GFP_KERNEL; -} - /* * Definition of our link level header. */ -- 2.30.2