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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>


      parent reply	other threads:[~2026-08-07 12:57 UTC|newest]

Thread overview: 7+ 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]

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