From: Eduard Zingerman <eddyz87@gmail.com>
To: Ihor Solodrai <ihor.solodrai@linux.dev>,
bpf@vger.kernel.org, andrii@kernel.org, ast@kernel.org
Cc: dwarves@vger.kernel.org, alan.maguire@oracle.com,
acme@kernel.org, tj@kernel.org, kernel-team@meta.com
Subject: Re: [PATCH bpf-next v1 0/8] bpf: magic kernel functions
Date: Wed, 29 Oct 2025 17:44:07 -0700 [thread overview]
Message-ID: <50ddff79d33d6e2d57e104f610273d647530ddbc.camel@gmail.com> (raw)
In-Reply-To: <20251029190113.3323406-1-ihor.solodrai@linux.dev>
On Wed, 2025-10-29 at 12:01 -0700, Ihor Solodrai wrote:
Do we break compatibility with old pahole versions after this
patch-set? Old paholes won't synthesize the _impl kfuncs, so:
- binary compatibility between new-kernel/old-pahole + old-bpf
will be broken, as there would be no _impl kfuncs;
- new-kernel/old-pahole + new-bpf won't work either, as kernel will be
unable to find non-_impl function names for existing kfuncs.
[...]
next prev parent reply other threads:[~2025-10-30 0:44 UTC|newest]
Thread overview: 36+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-10-29 19:01 [PATCH bpf-next v1 0/8] bpf: magic kernel functions Ihor Solodrai
2025-10-29 19:01 ` [PATCH bpf-next v1 1/8] bpf: Add BTF_ID_LIST_END and BTF_ID_LIST_SIZE macros Ihor Solodrai
2025-10-29 19:41 ` bot+bpf-ci
2025-10-29 20:44 ` Ihor Solodrai
2025-10-29 23:54 ` Eduard Zingerman
2025-10-29 19:01 ` [PATCH bpf-next v1 2/8] bpf: Refactor btf_kfunc_id_set_contains Ihor Solodrai
2025-10-29 23:55 ` Eduard Zingerman
2025-10-29 19:01 ` [PATCH bpf-next v1 3/8] bpf: Support for kfuncs with KF_MAGIC_ARGS Ihor Solodrai
2025-10-29 19:41 ` bot+bpf-ci
2025-10-29 20:49 ` Ihor Solodrai
2025-10-29 23:59 ` Eduard Zingerman
2025-10-29 23:54 ` Eduard Zingerman
2025-10-30 0:03 ` Alexei Starovoitov
2025-10-30 16:31 ` Ihor Solodrai
2025-10-30 17:26 ` Eduard Zingerman
2025-10-30 10:24 ` kernel test robot
2025-10-30 11:58 ` kernel test robot
2025-10-30 13:54 ` kernel test robot
2025-10-29 19:01 ` [PATCH bpf-next v1 4/8] bpf: Support __magic prog_aux arguments for kfuncs Ihor Solodrai
2025-10-29 19:01 ` [PATCH bpf-next v1 5/8] bpf: Re-define bpf_wq_set_callback as magic kfunc Ihor Solodrai
2025-10-30 0:16 ` Eduard Zingerman
2025-10-29 19:01 ` [PATCH bpf-next v1 6/8] bpf,docs: Document KF_MAGIC_ARGS flag and __magic annotation Ihor Solodrai
2025-10-30 0:21 ` Eduard Zingerman
2025-10-29 19:01 ` [PATCH bpf-next v1 7/8] bpf: Re-define bpf_task_work_schedule_* kfuncs as magic Ihor Solodrai
2025-10-29 19:01 ` [PATCH bpf-next v1 8/8] bpf: Re-define bpf_stream_vprintk as a magic kfunc Ihor Solodrai
2025-10-30 0:44 ` Eduard Zingerman [this message]
2025-10-30 6:11 ` [PATCH bpf-next v1 0/8] bpf: magic kernel functions Eduard Zingerman
2025-10-30 18:14 ` Eduard Zingerman
2025-10-30 18:24 ` Ihor Solodrai
2025-10-30 18:37 ` Eduard Zingerman
2025-10-30 18:26 ` Alan Maguire
2025-10-30 18:42 ` Eduard Zingerman
2025-10-30 18:46 ` Ihor Solodrai
2025-10-30 19:47 ` Andrii Nakryiko
2025-10-30 20:02 ` Ihor Solodrai
2025-10-30 20:38 ` Andrii Nakryiko
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=50ddff79d33d6e2d57e104f610273d647530ddbc.camel@gmail.com \
--to=eddyz87@gmail.com \
--cc=acme@kernel.org \
--cc=alan.maguire@oracle.com \
--cc=andrii@kernel.org \
--cc=ast@kernel.org \
--cc=bpf@vger.kernel.org \
--cc=dwarves@vger.kernel.org \
--cc=ihor.solodrai@linux.dev \
--cc=kernel-team@meta.com \
--cc=tj@kernel.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 an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.