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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
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To: netdev@vger.kernel.org
Subject: [PATCH net-next 10/15] net: zd1211rw: Remove in_atomic() usage.
Date: Tue, 27 Oct 2020 23:54:49 +0100
Message-Id: <20201027225454.3492351-11-bigeasy@linutronix.de>
In-Reply-To: <20201027225454.3492351-1-bigeasy@linutronix.de>
References: <20201027225454.3492351-1-bigeasy@linutronix.de>
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Cc: Aymen Sghaier <aymen.sghaier@nxp.com>,
 Madalin Bucur <madalin.bucur@nxp.com>,
 Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
 Zhu Yanjun <zyjzyj2000@gmail.com>, Samuel Chessman <chessman@tux.org>,
 Ping-Ke Shih <pkshih@realtek.com>, Herbert Xu <herbert@gondor.apana.org.au>,
 =?UTF-8?q?Horia=20Geant=C4=83?= <horia.geanta@nxp.com>,
 linux-rdma@vger.kernel.org, Rain River <rain.1986.08.12@gmail.com>,
 Kalle Valo <kvalo@codeaurora.org>, Ulrich Kunitz <kune@deine-taler.de>,
 Jouni Malinen <j@w1.fi>, Daniel Drake <dsd@gentoo.org>,
 Jakub Kicinski <kuba@kernel.org>, Thomas Gleixner <tglx@linutronix.de>,
 linux-arm-kernel@lists.infradead.org, Leon Romanovsky <leon@kernel.org>,
 linuxppc-dev@lists.ozlabs.org, linux-wireless@vger.kernel.org,
 Li Yang <leoyang.li@nxp.com>, linux-crypto@vger.kernel.org,
 Jon Mason <jdmason@kudzu.us>, Saeed Mahameed <saeedm@nvidia.com>,
 "David S. Miller" <davem@davemloft.net>
Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org
Sender: "Linuxppc-dev"
 <linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org>

The usage of in_atomic() in driver code is deprecated as it can not
always detect all states where it is not allowed to sleep.

All callers are in premptible thread context and all functions invoke core
functions which have checks for invalid calling contexts already.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: Daniel Drake <dsd@gentoo.org>
Cc: Ulrich Kunitz <kune@deine-taler.de>
Cc: Kalle Valo <kvalo@codeaurora.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: linux-wireless@vger.kernel.org
Cc: netdev@vger.kernel.org
---
 drivers/net/wireless/zydas/zd1211rw/zd_usb.c | 15 ---------------
 1 file changed, 15 deletions(-)

diff --git a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c b/drivers/net/wir=
eless/zydas/zd1211rw/zd_usb.c
index 66367ab7e4c1e..5c4cd0e1adebb 100644
--- a/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
+++ b/drivers/net/wireless/zydas/zd1211rw/zd_usb.c
@@ -1711,11 +1711,6 @@ int zd_usb_ioread16v(struct zd_usb *usb, u16 *values,
 			 count, USB_MAX_IOREAD16_COUNT);
 		return -EINVAL;
 	}
-	if (in_atomic()) {
-		dev_dbg_f(zd_usb_dev(usb),
-			 "error: io in atomic context not supported\n");
-		return -EWOULDBLOCK;
-	}
 	if (!usb_int_enabled(usb)) {
 		dev_dbg_f(zd_usb_dev(usb),
 			  "error: usb interrupt not enabled\n");
@@ -1882,11 +1877,6 @@ int zd_usb_iowrite16v_async(struct zd_usb *usb, cons=
t struct zd_ioreq16 *ioreqs,
 			count, USB_MAX_IOWRITE16_COUNT);
 		return -EINVAL;
 	}
-	if (in_atomic()) {
-		dev_dbg_f(zd_usb_dev(usb),
-			"error: io in atomic context not supported\n");
-		return -EWOULDBLOCK;
-	}
=20
 	udev =3D zd_usb_to_usbdev(usb);
=20
@@ -1966,11 +1956,6 @@ int zd_usb_rfwrite(struct zd_usb *usb, u32 value, u8=
 bits)
 	int i, req_len, actual_req_len;
 	u16 bit_value_template;
=20
-	if (in_atomic()) {
-		dev_dbg_f(zd_usb_dev(usb),
-			"error: io in atomic context not supported\n");
-		return -EWOULDBLOCK;
-	}
 	if (bits < USB_MIN_RFWRITE_BIT_COUNT) {
 		dev_dbg_f(zd_usb_dev(usb),
 			"error: bits %d are smaller than"
--=20
2.28.0