From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from bregans-0.gladserv.net (bregans-0.gladserv.net [185.128.210.58]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 0E6CC3FF1 for ; Sat, 23 Aug 2025 13:05:49 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=185.128.210.58 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755954353; cv=none; b=T/qaxJPnt7tReC1CXjIM/xq/xNnHC0zR23b42nOxCOkxhaUZXgnBt7Ho1C0pJuph4BMoB+trlcSEMadgExsFvyKjD6jtD8LITKIMa276f2Ik3DiQ+/2jy/nuALCkFY3gAaYCjFDcawc4GoEAh8ZHNAJu5Gek7vA/gm0RduBVHlo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1755954353; c=relaxed/simple; bh=EOXfjekqBcGf+1Aocd4X9vOErj4iFDyvJgIWBukYBa4=; h=Date:From:To:Subject:Message-ID:MIME-Version:Content-Type: Content-Disposition; b=c0doWewoyT/Oo6xh3339TSt48PZ6adIHKN5WMKs1G/8mgEVPQ0S24qic7c4gvvGi9OG7lDQ2qECZE/jCzU9dayotOowv54l93AZkJiCOcMqO1iuIyPAR1tBYpjRLboPG6F7yEF2Zmri7MdxPNI+Wvp0Rza2vuFHihSFDZLWeQQQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=librecast.net; spf=pass smtp.mailfrom=librecast.net; arc=none smtp.client-ip=185.128.210.58 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=librecast.net Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=librecast.net Date: Sat, 23 Aug 2025 15:05:46 +0200 From: Brett Sheffield To: stable@vger.kernel.org Subject: Backporting Selftests to Stable Kernels? Message-ID: Precedence: bulk X-Mailing-List: stable@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline Dear Stable Maintainers, When a bugfix is backported to stable kernels, should we be backporting the associated selftest(s)? eg. 9e30ecf23b1b ("net: ipv4: fix incorrect MTU in broadcast routes") was backported to stable, but the selftest was not: 5777d1871bf6 ("selftests: net: add test for variable PMTU in broadcast routes") Does stable policy say whether it should be? It does not fix a bug, per se, but it does enable those of us running stable kernel tests to more thoroughly test stable RCs. Should mainline authors be encouraged to mark related tests for backporting? Cheers, Brett