From: Arend Van Spriel <arend.vanspriel@broadcom.com>
To: Thomas Gleixner <tglx@linutronix.de>,
LKML <linux-kernel@vger.kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>,
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Subject: Re: [patch 25/35] net: brcmfmac: Use netif_rx_any_context().
Date: Mon, 28 Sep 2020 10:03:25 +0200 [thread overview]
Message-ID: <174d3bce0c8.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> (raw)
In-Reply-To: <20200927194922.339094192@linutronix.de>
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On 9/27/2020 9:49 PM, Thomas Gleixner wrote:
> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>
> The usage of in_interrupt() in non-core code is phased out. Ideally the
> information of the calling context should be passed by the callers or the
> functions be split as appropriate.
>
> brcmfmac uses in_interupt() to select the netif_rx*() variant which matches
> the calling context. The attempt to consolidate the code by passing an
> arguemnt or by distangling it failed due lack of knowledge about this
> driver and because the call chains are convoluted and hard to follow.
I think it is only for USB devices that the function can be called in
"interrupt" context. PCIe devices call it from thread context for sure.
The function brcmf_netif_rx() is (in)directly called by brcmf_rx_frame(),
which is used by SDIO and USB. Anyway, it will be a bit more work, but
doable. Let me see what I can come up with.
Regards,
Arend
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WARNING: multiple messages have this Message-ID (diff)
From: Arend Van Spriel <arend.vanspriel@broadcom.com>
To: intel-wired-lan@osuosl.org
Subject: [Intel-wired-lan] [patch 25/35] net: brcmfmac: Use netif_rx_any_context().
Date: Mon, 28 Sep 2020 10:03:25 +0200 [thread overview]
Message-ID: <174d3bce0c8.279b.9b12b7fc0a3841636cfb5e919b41b954@broadcom.com> (raw)
In-Reply-To: <20200927194922.339094192@linutronix.de>
On 9/27/2020 9:49 PM, Thomas Gleixner wrote:
> From: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
>
> The usage of in_interrupt() in non-core code is phased out. Ideally the
> information of the calling context should be passed by the callers or the
> functions be split as appropriate.
>
> brcmfmac uses in_interupt() to select the netif_rx*() variant which matches
> the calling context. The attempt to consolidate the code by passing an
> arguemnt or by distangling it failed due lack of knowledge about this
> driver and because the call chains are convoluted and hard to follow.
I think it is only for USB devices that the function can be called in
"interrupt" context. PCIe devices call it from thread context for sure.
The function brcmf_netif_rx() is (in)directly called by brcmf_rx_frame(),
which is used by SDIO and USB. Anyway, it will be a bit more work, but
doable. Let me see what I can come up with.
Regards,
Arend
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next prev parent reply other threads:[~2020-09-28 8:03 UTC|newest]
Thread overview: 115+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-09-27 19:48 [patch 00/35] net: in_interrupt() cleanup and fixes Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 01/35] net: enic: Cure the enic api locking trainwreck Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 22:06 ` kernel test robot
2020-09-27 19:48 ` [patch 02/35] net: caif: Remove unused caif SPI driver Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 03/35] net: Add netif_rx_any_context() Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 04/35] net: caif: Use netif_rx_any_context() Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 05/35] net: atheros: Remove WARN_ON(in_interrupt()) Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 06/35] net: cxgb3: Cleanup in_interrupt() usage Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 07/35] net: cxbg4: Remove pointless in_interrupt() check Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 08/35] net: e100: Remove in_interrupt() usage and pointless GFP_ATOMIC allocation Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 09/35] net: fec_mpc52xx: Replace in_interrupt() usage Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 10/35] net: intel: Remove in_interrupt() warnings Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 23:04 ` Alexander Duyck
2020-09-28 23:04 ` [Intel-wired-lan] " Alexander Duyck
2020-09-27 19:48 ` [patch 11/35] net: ionic: Replace in_interrupt() usage Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 17:24 ` Shannon Nelson
2020-09-28 17:24 ` [Intel-wired-lan] " Shannon Nelson
2020-09-28 19:51 ` Shannon Nelson
2020-09-28 19:51 ` [Intel-wired-lan] " Shannon Nelson
2020-09-29 14:37 ` Thomas Gleixner
2020-09-29 14:37 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:48 ` [patch 12/35] net: ionic: Remove WARN_ON(in_interrupt()) Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 17:26 ` Shannon Nelson
2020-09-28 17:26 ` [Intel-wired-lan] " Shannon Nelson
2020-09-27 19:48 ` [patch 13/35] net: mdiobus: Remove WARN_ON_ONCE(in_interrupt()) Thomas Gleixner
2020-09-27 19:48 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 23:00 ` Andrew Lunn
2020-09-27 23:00 ` [Intel-wired-lan] " Andrew Lunn
2020-09-27 19:49 ` [patch 14/35] net: natsemi: Replace in_interrupt() usage Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 15/35] net: sfc: " Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 19:03 ` Edward Cree
2020-09-28 19:03 ` [Intel-wired-lan] " Edward Cree
2020-09-28 20:05 ` [RFC PATCH net-next] sfc: replace " Edward Cree
2020-09-28 20:24 ` Thomas Gleixner
2020-09-29 15:15 ` Edward Cree
2020-09-29 19:27 ` Thomas Gleixner
2020-09-29 9:39 ` Martin Habets
2020-09-27 19:49 ` [patch 16/35] net: sunbmac: Replace " Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 17/35] net: sun3lance: Remove redundant checks in interrupt handler Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 18/35] net: vxge: Remove in_interrupt() conditionals Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 19/35] net: zd1211rw: Remove ZD_ASSERT(in_interrupt()) Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 20/35] net: usb: kaweth: Replace kaweth_control() with usb_control_msg() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 21/35] net: usb: kaweth: Remove last user of kaweth_control() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 6:50 ` Greg Kroah-Hartman
2020-09-28 6:50 ` [Intel-wired-lan] " Greg Kroah-Hartman
2020-09-27 19:49 ` [patch 22/35] net: usb: net1080: Remove in_interrupt() comment Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 23/35] net: wan/lmc: Remove lmc_trace() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 24/35] net: brcmfmac: Replace in_interrupt() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 7:35 ` Arend Van Spriel
2020-09-28 7:35 ` [Intel-wired-lan] " Arend Van Spriel
2020-09-28 9:19 ` Ulf Hansson
2020-09-28 9:19 ` [Intel-wired-lan] " Ulf Hansson
2020-09-28 9:37 ` Arend Van Spriel
2020-09-28 9:37 ` [Intel-wired-lan] " Arend Van Spriel
2020-09-28 9:40 ` Arend Van Spriel
2020-09-28 9:40 ` [Intel-wired-lan] " Arend Van Spriel
2020-09-27 19:49 ` [patch 25/35] net: brcmfmac: Use netif_rx_any_context() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 8:03 ` Arend Van Spriel [this message]
2020-09-28 8:03 ` Arend Van Spriel
2020-09-27 19:49 ` [patch 26/35] net: brcmfmac: Convey allocation mode as argument Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 9:34 ` Arend Van Spriel
2020-09-28 9:34 ` [Intel-wired-lan] " Arend Van Spriel
2020-09-27 19:49 ` [patch 27/35] net: ipw2x00,iwlegacy,iwlwifi: Remove in_interrupt() from debug macros Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] [patch 27/35] net: ipw2x00, iwlegacy, iwlwifi: " Thomas Gleixner
2020-09-27 19:49 ` [patch 28/35] net: iwlwifi: Remove in_interrupt() from tracing macro Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-28 6:13 ` Coelho, Luciano
2020-09-28 6:13 ` [Intel-wired-lan] " Coelho, Luciano
2020-09-27 19:49 ` [patch 29/35] net: hostap: Remove in_interrupt() usage Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 30/35] net: mwifiex: Use netif_rx_any_context() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 31/35] net: libertas libertas_tf: Remove in_interrupt() from debug macro Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 32/35] net: libertas: Use netif_rx_any_context() Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 33/35] net: rtlwifi: Remove void* casts related to delayed work Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 34/35] net: rtlwifi: Remove in_interrupt() from debug macro Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 19:49 ` [patch 35/35] net: rtlwifi: Replace in_interrupt() for context detection Thomas Gleixner
2020-09-27 19:49 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-27 20:22 ` [patch 00/35] net: in_interrupt() cleanup and fixes Joe Perches
2020-09-27 20:22 ` [Intel-wired-lan] " Joe Perches
2020-09-27 20:57 ` David Miller
2020-09-27 20:57 ` [Intel-wired-lan] " David Miller
2020-09-28 10:25 ` Thomas Gleixner
2020-09-28 10:25 ` [Intel-wired-lan] " Thomas Gleixner
2020-09-29 8:01 ` Kalle Valo
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