From: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
Cc: Jiri Pirko <jiri@resnulli.us>,
netdev@vger.kernel.org, John Fastabend <john.fastabend@gmail.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
edumazet@google.com, Madhu Chittim <madhu.chittim@intel.com>,
anthony.l.nguyen@intel.com, Simon Horman <horms@kernel.org>,
Sridhar Samudrala <sridhar.samudrala@intel.com>,
Donald Hunter <donald.hunter@gmail.com>,
intel-wired-lan@lists.osuosl.org, przemyslaw.kitszel@intel.com,
Sunil Kovvuri Goutham <sgoutham@marvell.com>
Subject: Re: [Intel-wired-lan] [PATCH v7 net-next 14/15] iavf: Add net_shaper_ops support
Date: Tue, 10 Sep 2024 15:03:37 -0700 [thread overview]
Message-ID: <20240910150337.6c397227@kernel.org> (raw)
In-Reply-To: <6c6b03fca7cc58658d47e0f3da68bbbcda4ae1ec.1725919039.git.pabeni@redhat.com>
On Tue, 10 Sep 2024 00:10:08 +0200 Paolo Abeni wrote:
> + if (adapter->netdev->reg_state == NETREG_REGISTERED) {
> + mutex_lock(&adapter->netdev->lock);
> + devlock = true;
> + }
This leads to a false positive in cocci.
Any concerns about moving the mutex_init() / _destroy() into
alloc_netdev_mqs() / free_netdev()? I guess one could argue
that narrower scope of the lock being valid may help catching
errors, but I think we'll instead end up with more checks like
the above sprinkled around than bugs caught?
WARNING: multiple messages have this Message-ID (diff)
From: Jakub Kicinski <kuba@kernel.org>
To: Paolo Abeni <pabeni@redhat.com>
Cc: netdev@vger.kernel.org, Jiri Pirko <jiri@resnulli.us>,
Madhu Chittim <madhu.chittim@intel.com>,
Sridhar Samudrala <sridhar.samudrala@intel.com>,
Simon Horman <horms@kernel.org>,
John Fastabend <john.fastabend@gmail.com>,
Sunil Kovvuri Goutham <sgoutham@marvell.com>,
Jamal Hadi Salim <jhs@mojatatu.com>,
Donald Hunter <donald.hunter@gmail.com>,
anthony.l.nguyen@intel.com, przemyslaw.kitszel@intel.com,
intel-wired-lan@lists.osuosl.org, edumazet@google.com
Subject: Re: [PATCH v7 net-next 14/15] iavf: Add net_shaper_ops support
Date: Tue, 10 Sep 2024 15:03:37 -0700 [thread overview]
Message-ID: <20240910150337.6c397227@kernel.org> (raw)
In-Reply-To: <6c6b03fca7cc58658d47e0f3da68bbbcda4ae1ec.1725919039.git.pabeni@redhat.com>
On Tue, 10 Sep 2024 00:10:08 +0200 Paolo Abeni wrote:
> + if (adapter->netdev->reg_state == NETREG_REGISTERED) {
> + mutex_lock(&adapter->netdev->lock);
> + devlock = true;
> + }
This leads to a false positive in cocci.
Any concerns about moving the mutex_init() / _destroy() into
alloc_netdev_mqs() / free_netdev()? I guess one could argue
that narrower scope of the lock being valid may help catching
errors, but I think we'll instead end up with more checks like
the above sprinkled around than bugs caught?
next prev parent reply other threads:[~2024-09-10 22:03 UTC|newest]
Thread overview: 46+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-09-09 22:09 [Intel-wired-lan] [PATCH v7 net-next 00/15] net: introduce TX H/W shaping API Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-09 22:09 ` [Intel-wired-lan] [PATCH v7 net-next 01/15] genetlink: extend info user-storage to match NL cb ctx Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-10 7:09 ` [Intel-wired-lan] " Paul Menzel
2024-09-10 7:09 ` Paul Menzel
2024-09-09 22:09 ` [Intel-wired-lan] [PATCH v7 net-next 02/15] netlink: spec: add shaper YAML spec Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-10 12:08 ` [Intel-wired-lan] " Paul Menzel
2024-09-10 12:08 ` Paul Menzel
2024-09-19 15:11 ` Paolo Abeni
2024-09-19 15:11 ` Paolo Abeni
2024-09-09 22:09 ` [Intel-wired-lan] [PATCH v7 net-next 03/15] net-shapers: implement NL get operation Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-09 22:09 ` [Intel-wired-lan] [PATCH v7 net-next 04/15] net-shapers: implement NL set and delete operations Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-09 22:09 ` [Intel-wired-lan] [PATCH v7 net-next 05/15] net-shapers: implement NL group operation Paolo Abeni
2024-09-09 22:09 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 06/15] net-shapers: implement delete support for NODE scope shaper Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 07/15] net-shapers: implement shaper cleanup on queue deletion Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 08/15] netlink: spec: add shaper introspection support Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 09/15] net: shaper: implement " Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 10/15] net-shapers: implement cap validation in the core Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 11/15] testing: net-drv: add basic shaper test Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-10 21:41 ` [Intel-wired-lan] " Stanislav Fomichev
2024-09-10 21:41 ` Stanislav Fomichev
2024-09-19 15:02 ` [Intel-wired-lan] " Paolo Abeni
2024-09-19 15:02 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 12/15] virtchnl: support queue rate limit and quanta size configuration Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 13/15] ice: Support VF " Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 14/15] iavf: Add net_shaper_ops support Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
2024-09-10 22:03 ` Jakub Kicinski [this message]
2024-09-10 22:03 ` Jakub Kicinski
2024-09-19 15:07 ` [Intel-wired-lan] " Paolo Abeni
2024-09-19 15:07 ` Paolo Abeni
2024-09-09 22:10 ` [Intel-wired-lan] [PATCH v7 net-next 15/15] iavf: add support to exchange qos capabilities Paolo Abeni
2024-09-09 22:10 ` Paolo Abeni
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