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From: Daniel Wagner <dwagner@suse.de>
To: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-scsi@vger.kernel.org,
	Finn Thain <fthain@telegraphics.com.au>,
	GR-QLogic-Storage-Upstream@marvell.com,
	Hannes Reinecke <hare@kernel.org>,
	Jack Wang <jinpu.wang@cloud.ionos.com>,
	John Garry <john.garry@huawei.com>,
	linux-m68k@lists.linux-m68k.org,
	Manish Rangankar <mrangankar@marvell.com>,
	Michael Schmitz <schmitzmic@gmail.com>,
	MPT-FusionLinux.pdl@broadcom.com,
	Nilesh Javali <njavali@marvell.com>,
	Sathya Prakash <sathya.prakash@broadcom.com>,
	Sreekanth Reddy <sreekanth.reddy@broadcom.com>,
	Suganath Prabu Subramani  <suganath-prabu.subramani@broadcom.com>,
	Vikram Auradkar <auradkar@google.com>,
	Xiang Chen <chenxiang66@hisilicon.com>,
	Xiaofei Tan <tanxiaofei@huawei.com>,
	"James E . J . Bottomley" <jejb@linux.ibm.com>,
	"Martin K . Petersen" <martin.petersen@oracle.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"Ahmed S . Darwish" <a.darwish@linutronix.de>
Subject: Re: [PATCH 11/14] scsi: myrs: Remove WARN_ON(in_interrupt()).
Date: Mon, 30 Nov 2020 16:21:43 +0100	[thread overview]
Message-ID: <20201130152143.6owoxbntdmsu6pkd@beryllium.lan> (raw)
In-Reply-To: <20201126132952.2287996-12-bigeasy@linutronix.de>

On Thu, Nov 26, 2020 at 02:29:49PM +0100, Sebastian Andrzej Siewior wrote:
> From: "Ahmed S. Darwish" <a.darwish@linutronix.de>
> 
> The in_interrupt() macro is ill-defined and does not provide what the
> name suggests. The usage especially in driver code is deprecated and a
> tree-wide effort to clean up and consolidate the (ab)usage of
> in_interrupt() and related checks is happening.
> 
> In this case the check covers only parts of the contexts in which these
> functions cannot be called. It fails to detect preemption or interrupt
> disabled invocations.
> 
> As wait_for_completion() already contains a broad variety of checks
> (always enabled or debug option dependent) which cover all invalid
> conditions already, there is no point in having extra inconsistent
> warnings in drivers.
> 
> Just remove it.
> 
> Signed-off-by: Ahmed S. Darwish <a.darwish@linutronix.de>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Cc: Hannes Reinecke <hare@kernel.org>

Reviewed-by: Daniel Wagner <dwagner@suse.de>

  reply	other threads:[~2020-11-30 15:22 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-11-26 13:29 [PATCH 00/14] scsi: Remove in_interrupt() usage Sebastian Andrzej Siewior
2020-11-26 13:29 ` [PATCH 01/14] scsi: pm80xx: Do not sleep in atomic context Sebastian Andrzej Siewior
2020-11-26 13:58   ` Jinpu Wang
2020-11-26 13:29 ` [PATCH 02/14] scsi: hisi_sas: Remove preemptible() Sebastian Andrzej Siewior
2020-11-26 14:10   ` John Garry
2020-11-26 13:29 ` [PATCH 03/14] scsi: qla4xxx: qla4_82xx_crb_win_lock(): Remove in_interrupt() Sebastian Andrzej Siewior
2020-11-30 13:54   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 04/14] scsi: qla2xxx: qla82xx: " Sebastian Andrzej Siewior
2020-11-30 10:59   ` Daniel Wagner
2020-11-30 19:11   ` Himanshu Madhani
2020-11-26 13:29 ` [PATCH 05/14] scsi: qla2xxx: tcm_qla2xxx: Remove BUG_ON(in_interrupt()) Sebastian Andrzej Siewior
2020-11-30 11:02   ` Daniel Wagner
2020-11-30 19:13   ` Himanshu Madhani
2020-11-26 13:29 ` [PATCH 06/14] scsi: qla2xxx: init/os: Remove in_interrupt() Sebastian Andrzej Siewior
2020-11-30 13:26   ` Daniel Wagner
2020-11-30 19:14   ` Himanshu Madhani
2020-11-26 13:29 ` [PATCH 07/14] scsi: qla4xxx: qla4_82xx_idc_lock(): " Sebastian Andrzej Siewior
2020-11-30 14:20   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 08/14] scsi: qla4xxx: qla4_82xx_rom_lock(): " Sebastian Andrzej Siewior
2020-11-30 14:33   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 09/14] scsi: mpt3sas: " Sebastian Andrzej Siewior
2020-11-30 15:16   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 10/14] scsi: myrb: Remove WARN_ON(in_interrupt()) Sebastian Andrzej Siewior
2020-11-30 15:21   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 11/14] scsi: myrs: " Sebastian Andrzej Siewior
2020-11-30 15:21   ` Daniel Wagner [this message]
2020-11-26 13:29 ` [PATCH 12/14] scsi: NCR5380: Remove in_interrupt() Sebastian Andrzej Siewior
2020-11-27  4:37   ` Finn Thain
2020-11-27 21:15     ` Finn Thain
2020-11-27 21:48       ` Finn Thain
2020-11-28  7:28         ` Ahmed S. Darwish
2020-11-30  0:21           ` Finn Thain
2020-11-29  6:54         ` Michael Schmitz
2020-11-30  0:15           ` Finn Thain
2020-11-30  2:42             ` Michael Schmitz
2020-11-26 13:29 ` [PATCH 13/14] scsi: message: fusion: Remove in_interrupt() usage in mpt_config() Sebastian Andrzej Siewior
2020-11-30 15:30   ` Daniel Wagner
2020-11-26 13:29 ` [PATCH 14/14] scsi: message: fusion: Remove in_interrupt() usage in mptsas_cleanup_fw_event_q() Sebastian Andrzej Siewior
2020-11-30 16:07   ` Daniel Wagner
2020-12-01  5:06 ` [PATCH 00/14] scsi: Remove in_interrupt() usage Martin K. Petersen
2020-12-01  9:08   ` Sebastian Andrzej Siewior
2020-12-08  4:51 ` Martin K. Petersen

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