linux-kernel - [PATCH net-next v3 0/2] net: update netdev_rx_csum

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Date:   Mon, 28 Jun 2021 09:50:05 -0400
From:   Tanner Love <tannerlove.kernel@...il.com>
To:     netdev@...r.kernel.org
Cc:     linux-kernel@...r.kernel.org, linux-arch@...r.kernel.org,
        "David S . Miller" <davem@...emloft.net>,
        Eric Dumazet <edumazet@...gle.com>,
        Mahesh Bandewar <maheshb@...gle.com>,
        "Darrick J . Wong" <djwong@...nel.org>,
        Arnd Bergmann <arnd@...db.de>, Petr Mladek <pmladek@...e.com>,
        Sergey Senozhatsky <senozhatsky@...omium.org>,
        Steven Rostedt <rostedt@...dmis.org>,
        John Ogness <john.ogness@...utronix.de>,
        Ingo Molnar <mingo@...hat.com>,
        Jakub Kicinski <kuba@...nel.org>,
        Andrii Nakryiko <andriin@...com>,
        Antoine Tenart <atenart@...nel.org>,
        Alexander Lobakin <alobakin@...me>,
        Wei Wang <weiwan@...gle.com>, Taehee Yoo <ap420073@...il.com>,
        Yunsheng Lin <linyunsheng@...wei.com>,
        Willem de Bruijn <willemb@...gle.com>,
        Tanner Love <tannerlove@...gle.com>
Subject: [PATCH net-next v3 0/2] net: update netdev_rx_csum_fault() print dump only once

From: Tanner Love <tannerlove@...gle.com>

First patch implements DO_ONCE_LITE to abstract uses of the ".data.once"
trick. It is defined in its own, new header file  -- rather than
alongside the existing DO_ONCE in include/linux/once.h -- because
include/linux/once.h includes include/linux/jump_label.h, and this
causes the build to break for some architectures if
include/linux/once.h is included in include/linux/printk.h or
include/asm-generic/bug.h.

Second patch uses DO_ONCE_LITE in netdev_rx_csum_fault to print dump
only once.

Tanner Love (2):
  once: implement DO_ONCE_LITE for non-fast-path "do once" functionality
  net: update netdev_rx_csum_fault() print dump only once

 fs/xfs/xfs_message.h      | 13 +++----------
 include/asm-generic/bug.h | 37 +++++++------------------------------
 include/linux/once_lite.h | 24 ++++++++++++++++++++++++
 include/linux/printk.h    | 23 +++--------------------
 kernel/trace/trace.h      | 13 +++----------
 net/core/dev.c            | 14 +++++++++-----
 6 files changed, 49 insertions(+), 75 deletions(-)
 create mode 100644 include/linux/once_lite.h

-- 
2.32.0.93.g670b81a890-goog