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
| ||
|
Date: Tue, 10 Nov 2015 16:08:55 -0800 From: Eric Dumazet <eric.dumazet@...il.com> To: Yang Shi <yang.shi@...aro.org> Cc: ast@...nel.org, daniel@...earbox.net, catalin.marinas@....com, will.deacon@....com, zlim.lnx@...il.com, xi.wang@...il.com, linux-kernel@...r.kernel.org, netdev@...r.kernel.org, linux-arm-kernel@...ts.infradead.org, linaro-kernel@...ts.linaro.org Subject: Re: [PATCH 2/2] arm64: bpf: add BPF XADD instruction On Tue, 2015-11-10 at 14:41 -0800, Yang Shi wrote: > aarch64 doesn't have native support for XADD instruction, implement it by > the below instruction sequence: > > Load (dst + off) to a register > Add src to it > Store it back to (dst + off) Not really what is needed ? See this BPF_XADD as an atomic_add() equivalent. -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
Powered by blists - more mailing lists