From: Heiko Carstens <heiko.carstens@de.ibm.com>
To: Laura Abbott <labbott@redhat.com>
Cc: Ilya Leoshkevich <iii@linux.ibm.com>,
stable <stable@vger.kernel.org>,
Major Hayden <mhayden@redhat.com>
Subject: Re: Request for 4.19.x backport (with conflicts)
Date: Fri, 21 Jun 2019 15:11:35 +0200 [thread overview]
Message-ID: <20190621131135.GB11296@osiris> (raw)
In-Reply-To: <0fc1a3e6-59ef-6390-38c4-55e7c48bee78@redhat.com>
Hello Laura,
> We're attempting to build stable kernels with gcc9. 4.19.x fails to build with
> gcc9 as 146448524bdd ("s390/jump_label: Use "jdd" constraint on gcc9") is missing.
> This doesn't apply cleanly to 4.19.x as it needs changes from 13ddb52c165b
> ("s390/jump_label: Switch to relative references")
>
> Which is better, taking both 13ddb52c165b and 146448524bdd or doing
> a backport of 146448524bdd?
I don't know which kernel version you are referring to exactly,
however 4.19.53 from linux-stable does not contain the common code
infrastructure for relative jump labels. The infrastructure was merged
with 4.20: commit 50ff18ab497aa ("jump_label: Implement generic
support for relative references").
Therefore a backport of only 146448524bdd seems to be the way to go.
next prev parent reply other threads:[~2019-06-21 13:11 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-21 12:51 Request for 4.19.x backport (with conflicts) Laura Abbott
2019-06-21 13:11 ` Heiko Carstens [this message]
2019-06-21 14:48 ` Laura Abbott
2019-06-21 15:39 ` [PATCH] s390/jump_label: Use "jdd" constraint on gcc9 Ilya Leoshkevich
2019-06-21 17:46 ` Laura Abbott
2019-06-23 2:00 ` Sasha Levin
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