From: Simon Horman <horms@kernel.org>
To: Heiko Carstens <hca@linux.ibm.com>
Cc: Alexandra Winter <wintera@linux.ibm.com>,
Aswin Karuvally <aswin@linux.ibm.com>,
Andrew Lunn <andrew+netdev@lunn.ch>,
"David S . Miller" <davem@davemloft.net>,
Eric Dumazet <edumazet@google.com>,
Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>,
linux-s390@vger.kernel.org, netdev@vger.kernel.org
Subject: Re: [PATCH net-next 0/2] drivers/s390/net: Enable CONTEXT_ANALYSIS
Date: Fri, 7 Aug 2026 13:57:12 +0100 [thread overview]
Message-ID: <20260807125712.GK51943@horms.kernel.org> (raw)
In-Reply-To: <20260805145032.1409325-1-hca@linux.ibm.com>
On Wed, Aug 05, 2026 at 04:50:30PM +0200, Heiko Carstens wrote:
> Enable CONTEXT_ANALYSYS for drivers/s390/net.
>
> Static code checking for acquiring and releasing locks used to be done
> with sparse. That was removed with [1] and replaced with a clang based
> approach [2]. The new approach requires that each subsystem needs to be
> explicitly enabled for checking.
>
> Do that for drivers/s390/net. In order to avoid false positives due to
> conditional locking, disable context analysis for specific functions of
> the ctcm driver. All comments in ctcm indicate that the code should stay
> as it is, and that such warnings should be ignored.
>
> Disabling context analysis for specific functions keeps analysis enabled
> for the rest of a file.
>
> [1] 5b63d0ae94cc ("compiler-context-analysis: Remove Sparse support")
> [2] 3269701cb256 ("compiler-context-analysis: Add infrastructure for Context Analysis with Clang")
>
> Heiko Carstens (2):
> s390/ctcm: Add __context_unsafe() attribute to various functions
> drivers/s390/net: Enable CONTEXT_ANALYSIS
For the series:
Reviewed-by: Simon Horman <horms@kernel.org>
next prev parent reply other threads:[~2026-08-07 12:57 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-08-05 14:50 [PATCH net-next 0/2] drivers/s390/net: Enable CONTEXT_ANALYSIS Heiko Carstens
2026-08-05 14:50 ` [PATCH net-next 1/2] s390/ctcm: Add __context_unsafe() attribute to various functions Heiko Carstens
2026-08-06 14:51 ` sashiko-bot
2026-08-05 14:50 ` [PATCH net-next 2/2] drivers/s390/net: Enable CONTEXT_ANALYSIS Heiko Carstens
2026-08-06 14:51 ` sashiko-bot
2026-08-05 15:50 ` [PATCH net-next 0/2] " Alexandra Winter
2026-08-07 12:57 ` Simon Horman [this message]
2026-08-11 0:20 ` patchwork-bot+netdevbpf
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