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From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
To: netdev@vger.kernel.org
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>,
	"Horia Geantă" <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>
Subject: [PATCH net-next 10/15] net: zd1211rw: Remove in_atomic() usage.
Date: Tue, 27 Oct 2020 23:54:49 +0100	[thread overview]
Message-ID: <20201027225454.3492351-11-bigeasy@linutronix.de> (raw)
In-Reply-To: <20201027225454.3492351-1-bigeasy@linutronix.de>

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/wireless/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, const 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;
-	}
 
 	udev = zd_usb_to_usbdev(usb);
 
@@ -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;
 
-	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"
-- 
2.28.0


  parent reply	other threads:[~2020-10-27 23:12 UTC|newest]

Thread overview: 23+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-27 22:54 [PATCH net-next 00/15] in_interrupt() cleanup, part 2 Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 01/15] net: orinoco: Remove BUG_ON(in_interrupt/irq()) Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 02/15] net: neterion: s2io: Replace in_interrupt() for context detection Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 03/15] net: forcedeth: Replace context and lock check with a lockdep_assert() Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 04/15] net: mlx5: Replace in_irq() usage Sebastian Andrzej Siewior
2020-10-31 16:59   ` Jakub Kicinski
2020-11-02 21:41     ` Saeed Mahameed
2020-11-03 19:31     ` Saeed Mahameed
2020-10-27 22:54 ` [PATCH net-next 05/15] net: tlan: " Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 06/15] net: airo: Invoke airo_read_wireless_stats() directly Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 07/15] net: airo: Always use JOB_STATS and JOB_EVENT Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 08/15] net: airo: Replace in_atomic() usage Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 09/15] net: hostap: Remove in_atomic() check Sebastian Andrzej Siewior
2020-10-27 22:54 ` Sebastian Andrzej Siewior [this message]
2020-10-27 22:54 ` [PATCH net-next 11/15] net: rtlwifi: Remove in_interrupt() usage in is_any_client_connect_to_ap() Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 12/15] net: rtlwifi: Remove in_interrupt() usage in halbtc_send_bt_mp_operation() Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 13/15] soc/fsl/qbman: Add an argument to signal if NAPI processing is required Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 14/15] net: dpaa: Replace in_irq() usage Sebastian Andrzej Siewior
2020-10-31 17:12   ` Jakub Kicinski
2020-11-01 23:04     ` Sebastian Andrzej Siewior
2020-10-27 22:54 ` [PATCH net-next 15/15] crypto: caam: " Sebastian Andrzej Siewior
2020-10-30 18:29 ` [PATCH net-next 00/15] in_interrupt() cleanup, part 2 Jakub Kicinski
2020-10-31 17:08 ` Jakub Kicinski

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