From: Thomas Monjalon <thomas@monjalon.net>
To: Konstantin Ananyev <konstantin.ananyev@intel.com>
Cc: dev@dpdk.org, stable@dpdk.org
Subject: Re: [dpdk-stable] [dpdk-dev] [PATCH] bpf: fix pseudo calls for BPF programs loaded from ELF
Date: Wed, 05 Jun 2019 18:33:28 +0200 [thread overview]
Message-ID: <1853797.H4zF8rg7Bj@xps> (raw)
In-Reply-To: <20190517140942.20724-1-konstantin.ananyev@intel.com>
17/05/2019 16:09, Konstantin Ananyev:
> clang 6.0 and onwards, for the external function call generates
> BPF_PSEUDO_CALL instruction:
> call pseudo +-off -> call another bpf function.
> More details about that change: https://lwn.net/Articles/741773/
> DPDK BPF implementation right now doesn't support multiple BPF
> functions per module.
> To overcome that problem, and preserve existing functionality
> (ability to call allowed by user external functions),
> bpf_elf_load() clears EBPF_PSEUDO_CALL value.
> For details how to reproduce the issue:
> https://bugs.dpdk.org/show_bug.cgi?id=259
>
> Fixes: 5dba93ae5f2d ("bpf: add ability to load eBPF program from ELF object file")
> Cc: stable@dpdk.org
>
> Signed-off-by: Konstantin Ananyev <konstantin.ananyev@intel.com>
Applied, thanks
prev parent reply other threads:[~2019-06-05 16:33 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-05-17 14:09 [dpdk-stable] " Konstantin Ananyev
2019-06-05 16:33 ` Thomas Monjalon [this message]
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1853797.H4zF8rg7Bj@xps \
--to=thomas@monjalon.net \
--cc=dev@dpdk.org \
--cc=konstantin.ananyev@intel.com \
--cc=stable@dpdk.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).