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  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [day] [month] [year] [list]
Date:   Thu, 13 Aug 2020 10:57:27 -0500
From:   Segher Boessenkool <>
To:     Christophe Leroy <>
Cc:     Solarflare linux maintainers <>,
        Edward Cree <>,
        Martin Habets <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,,,
Subject: Re: [PATCH] sfc_ef100: Fix build failure on powerpc

On Thu, Aug 13, 2020 at 02:39:10PM +0000, Christophe Leroy wrote:
> ppc6xx_defconfig fails building sfc.ko module, complaining
> about the lack of _umoddi3 symbol.
> This is due to the following test
>  		if (EFX_MIN_DMAQ_SIZE % reader->value) {
> Because reader->value is u64.
> As EFX_MIN_DMAQ_SIZE value is 512, reader->value is obviously small
> enough for an u32 calculation, so cast it as (u32) for the test, to
> avoid the need for _umoddi3.

That isn't the same e.g. if reader->value is 2**32 + small.  Which
probably cannot happen, but :-)


Powered by blists - more mailing lists