linux-kernel - Linux 5.15-rc3

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Message-ID: <CA+icZUUuacTuaWXopzH_YC3pCa3FPB=GReJ6BwE5zJ1j2WB_ew@mail.gmail.com>
Date:   Mon, 27 Sep 2021 22:48:42 +0200
From:   Sedat Dilek <sedat.dilek@...il.com>
To:     Linus Torvalds <torvalds@...ux-foundation.org>
Cc:     Nathan Chancellor <nathan@...nel.org>,
        Nick Desaulniers <ndesaulniers@...gle.com>,
        llvm@...ts.linux.dev, Jason Gunthorpe <jgg@...dia.com>,
        linux-rdma@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Linux 5.15-rc3

[ Please CC me I am not subscribed to LKML and linux-rdma ]

Hi,

with CONFIG_INFINIBAND_QIB=m I observe a build-error since Linux
v5.13-rc1 release.
This is with LLVM/Clang >= v13.0.0-rc3 on my Debian/unstable AMD64 system.

For details see ClangBuiltLinux issue #1452 (see [1]).

The fix is pending in rdma.git#for-rc (see [2]):

commit  3110b942d36b961858664486d72f815d78c956c3
"IB/qib: Fix clang confusion of NULL pointer comparison"

Dunno if there was a pull-request from linux-rdma folks.
Cannot say if it is worth taking this directly...?

Just want to let you know.

Regards,
- Sedat -

P.S.: My kernel-config is attached.

[0] https://marc.info/?l=linux-kernel&m=163269130729304&w=2
[1] https://github.com/ClangBuiltLinux/linux/issues/1452
[2] https://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma.git/commit/?h=for-rc&id=3110b942d36b961858664486d72f815d78c956c3

Download attachment "config-5.15.0-rc3-1-amd64-clang13-lto" of type "application/octet-stream" (245396 bytes)