netdev - Re: [net-next PATCH 2/4] netdev: make napi_schedule return bool on NAPI successful schedule

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <9a65ff82-e6b0-4253-be86-a0962e673bc4@quicinc.com>
Date: Mon, 2 Oct 2023 09:08:14 -0700
From: Jeff Johnson <quic_jjohnson@...cinc.com>
To: Christian Marangi <ansuelsmth@...il.com>, Jason Gunthorpe <jgg@...pe.ca>,
        Leon Romanovsky <leon@...nel.org>,
        Wolfgang Grandegger <wg@...ndegger.com>,
        Marc Kleine-Budde <mkl@...gutronix.de>,
        "David S. Miller"
	<davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>,
        Paolo Abeni <pabeni@...hat.com>, Chris Snook
	<chris.snook@...il.com>,
        Raju Rangoju <rajur@...lsio.com>,
        Jeroen de Borst
	<jeroendb@...gle.com>,
        Praveen Kaligineedi <pkaligineedi@...gle.com>,
        Shailend Chand <shailend@...gle.com>,
        Douglas Miller
	<dougmill@...ux.ibm.com>,
        Nick Child <nnac123@...ux.ibm.com>,
        Michael
 Ellerman <mpe@...erman.id.au>,
        Nicholas Piggin <npiggin@...il.com>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Haren Myneni
	<haren@...ux.ibm.com>,
        Rick Lindsley <ricklind@...ux.ibm.com>,
        Dany Madden
	<danymadden@...ibm.com>,
        Thomas Falcon <tlfalcon@...ux.ibm.com>,
        Tariq Toukan
	<tariqt@...dia.com>,
        Alexandre Torgue <alexandre.torgue@...s.st.com>,
        Jose
 Abreu <joabreu@...opsys.com>,
        Maxime Coquelin <mcoquelin.stm32@...il.com>,
        Krzysztof Halasa <khalasa@...p.pl>, Kalle Valo <kvalo@...nel.org>,
        Gregory
 Greenman <gregory.greenman@...el.com>,
        Chandrashekar Devegowda
	<chandrashekar.devegowda@...el.com>,
        Intel Corporation <linuxwwan@...el.com>,
        Chiranjeevi Rapolu <chiranjeevi.rapolu@...ux.intel.com>,
        Liu Haijun
	<haijun.liu@...iatek.com>,
        M Chetan Kumar <m.chetan.kumar@...ux.intel.com>,
        Ricardo Martinez <ricardo.martinez@...ux.intel.com>,
        Loic Poulain
	<loic.poulain@...aro.org>,
        Sergey Ryazanov <ryazanov.s.a@...il.com>,
        Johannes
 Berg <johannes@...solutions.net>,
        Yuanjun Gong <ruc_gongyuanjun@....com>, Wei
 Fang <wei.fang@....com>,
        Alex Elder <elder@...aro.org>, Simon Horman
	<horms@...nel.org>,
        Rob Herring <robh@...nel.org>, Bailey Forrest
	<bcf@...gle.com>,
        "Gustavo A. R. Silva" <gustavoars@...nel.org>,
        Junfeng Guo
	<junfeng.guo@...el.com>,
        Ziwei Xiao <ziweixiao@...gle.com>,
        Thomas Gleixner
	<tglx@...utronix.de>,
        Rushil Gupta <rushilg@...gle.com>,
        Uwe Kleine-König <u.kleine-koenig@...gutronix.de>,
        Yuri
 Karpov <YKarpov@...ras.ru>,
        Zhengchao Shao <shaozhengchao@...wei.com>,
        Andrew
 Lunn <andrew@...n.ch>, Zheng Zengkai <zhengzengkai@...wei.com>,
        "Rafael J.
 Wysocki" <rafael.j.wysocki@...el.com>,
        Lee Jones <lee@...nel.org>, Dawei Li
	<set_pte_at@...look.com>,
        Hans de Goede <hdegoede@...hat.com>,
        Benjamin Berg
	<benjamin.berg@...el.com>,
        Anjaneyulu <pagadala.yesu.anjaneyulu@...el.com>,
        <linux-rdma@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <linux-can@...r.kernel.org>, <netdev@...r.kernel.org>,
        <linuxppc-dev@...ts.ozlabs.org>,
        <linux-stm32@...md-mailman.stormreply.com>,
        <linux-arm-kernel@...ts.infradead.org>, <ath10k@...ts.infradead.org>,
        <linux-wireless@...r.kernel.org>
Subject: Re: [net-next PATCH 2/4] netdev: make napi_schedule return bool on
 NAPI successful schedule

On 10/2/2023 8:10 AM, Christian Marangi wrote:
> Change napi_schedule to return a bool on NAPI successful schedule. This
> might be useful for some driver to do additional step after a NAPI ahs

nit:s/ahs/has/

> been scheduled.
> 
> Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
> ---
>   include/linux/netdevice.h | 11 +++++++++--
>   1 file changed, 9 insertions(+), 2 deletions(-)
> 
> diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
> index 7e520c14eb8c..2bead8e2a14d 100644
> --- a/include/linux/netdevice.h
> +++ b/include/linux/netdevice.h
> @@ -490,11 +490,18 @@ bool napi_schedule_prep(struct napi_struct *n);
>    *
>    * Schedule NAPI poll routine to be called if it is not already
>    * running.
> + * Return true if we schedule a NAPI or false if not.
> + * Refer to napi_schedule_prep() for additional reason on why
> + * a NAPI might not be scheduled.
>    */
> -static inline void napi_schedule(struct napi_struct *n)
> +static inline bool napi_schedule(struct napi_struct *n)
>   {
> -	if (napi_schedule_prep(n))
> +	if (napi_schedule_prep(n)) {
>   		__napi_schedule(n);
> +		return true;
> +	}
> +
> +	return false;
>   }
>   
>   /**