linux-kernel - 4.9.80 compile failure with X86_VSYSCALL

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 for Android: free password hash cracker in your pocket

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

Date:   Mon, 12 Feb 2018 10:43:25 -0500
From:   lsorense@...lub.uwaterloo.ca (Lennart Sorensen)
To:     LKML <linux-kernel@...r.kernel.org>
Cc:     Ben Hutchings <ben.hutchings@...ethink.co.uk>,
        Len Sorensen <lsorense@...lub.uwaterloo.ca>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Subject: 4.9.80 compile failure with X86_VSYSCALL_EMULATION=n due to 9a0be5af

Commit 9a0be5af added a reference to vsyscall_pgprot in
arch/x86/mm/kaiser.c but that is undefined if X86_VSYSCALL_EMULATION=n
which on an embedded system where you know how all your software is
compiled is quite likely.

Of course the condition is always false with that config so the code
will never be run, but the compiler is unhappy.

-- 
Len Sorensen