linux-kernel - Linux 6.1-rc3 build fail in include/linux/bpf.h

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-ID: <439d8dc735bb4858875377df67f1b29a@AcuMS.aculab.com>
Date:   Mon, 31 Oct 2022 11:14:31 +0000
From:   David Laight <David.Laight@...LAB.COM>
To:     "netdev@...r.kernel.org" <netdev@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
CC:     Jiri Olsa <jolsa@...nel.org>
Subject: Linux 6.1-rc3 build fail in include/linux/bpf.h

The 6.1-rc3 sources fail to build because bpf.h unconditionally
#define BPF_DISPATCHER_ATTRIBUTES __attribute__((patchable_function_entry(5)))
for X86_64 builds.

I'm pretty sure that should depend on some other options
since the compiler isn't required to support it.
(The gcc 7.5.0 on my Ubunti 18.04 system certainly doesn't)

The only other reference to that attribute is in the definition
of 'notrace' in compiler.h.

	David

-
Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK
Registration No: 1397386 (Wales)