From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-qt1-f202.google.com (mail-qt1-f202.google.com [209.85.160.202]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 2FB9B3DB636 for ; Thu, 21 May 2026 13:19:22 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.160.202 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779369563; cv=none; b=Q5J3qbP2HWO6vuAuQ4WhMnqtzugGgXeanqY/UYHqMdSdaHAdm9q6SPwYJ+iF8gxlYla3jIXJikPJazzpxNeDwfa+pU0Vy/tCGL8YsaiGXRnQiGCR9RQDyMPFgFBV2fSWPefK9NWNNVsDS954hw2JOqF+SJUGT8nPe9ZkI7qlMJw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1779369563; c=relaxed/simple; bh=n4jUwDN00IoCg9eM4tdjajzWwhNoFWpvMQYkIHLvKlk=; h=Date:Mime-Version:Message-ID:Subject:From:To:Cc:Content-Type; b=spz5Ljn5nDxWpDGucZUOCYAs8w2k+A58wBpM3rFcENziJBesqnApjQbXcmMPNHcIGRE2zBoKhXUbcAn3672Vqn8ASgHLyRrVfuTG0OGUwNgrPkpjKOZaAfjmRaeCWSsPRRkJDh+12FmfEb3H+IgYGUP5ovamzByvEtKWX3HFzWg= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b=vZF1Tf1W; arc=none smtp.client-ip=209.85.160.202 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=google.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=flex--edumazet.bounces.google.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=google.com header.i=@google.com header.b="vZF1Tf1W" Received: by mail-qt1-f202.google.com with SMTP id d75a77b69052e-50d8e8c47a3so34771461cf.0 for ; Thu, 21 May 2026 06:19:22 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20251104; t=1779369561; x=1779974361; darn=vger.kernel.org; h=cc:to:from:subject:message-id:mime-version:date:from:to:cc:subject :date:message-id:reply-to; bh=lLeARIn6HK81yx2IwCYu0ZPFekOnuaSqLzvfeFL7y5k=; b=vZF1Tf1WWNwd3pue7ULrY1c57PmD6m4CIGCiTV8PSaRhlFDQPQjy9Rwf5iNsjpUn1N CYxekK8aizo80FhgKVpvFAdvwu3iBw4p6MCJuwUusG8zdcf6TNXo7W4cINeY0G2lLab8 173CG67lT89RgBA0SnnBOXCdrf2ToOiZKrt3Zjy53SRIwV1jvAIHEaTG/tQlSZUq+oNH kiwWIaerkgy6DtvE6XsF56Q/9jz8KMy1Triqpk5huqXzQC18dk9nCGFhS6Bybn6WWvzL i3D580IsbBGfXSSDkdAuB06tf9hhr0U8KTyPYoliTBtOgFzTQu3x8k3F6qsrNVHMg3OK 5yLg== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20251104; t=1779369561; x=1779974361; h=cc:to:from:subject:message-id:mime-version:date:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=lLeARIn6HK81yx2IwCYu0ZPFekOnuaSqLzvfeFL7y5k=; b=IP8E8VmPApy/El/DA0HuGtks7o/8/o42++FloooeyEPLnmSAOIfWiQLEiIGqsaCKCw VPt+C9ecTc9KrsyfTkjBdNb02N0MkR1JN516ltnuH6ufx+KyJTM66/gl6n7DNGEhj9La gUEJS7mQbna4/ZL7JcHEk4LuesfyrXJmTi0qUufgFgG2K72AkDu3tc3us0okSdzFSdMM yo7YDuWHi0QK3c/0YpNMUN9FgEIks3x6O3iabrU94O+P/JxxwntisWIn6gvLl0S4ony9 dC015Ysi+tMjrsFqtS3S0aT3PZmSozecAzr0oWjVxMi/q0/HUu0wBC0KVt2D6w/wNROo E9jw== X-Forwarded-Encrypted: i=1; AFNElJ90D13x75N639B0jZG47L/RFpfRTNNdNJwGpi3RFDDUblVLANJXqcuyMOskbUNGbM1MfWAxLlI=@vger.kernel.org X-Gm-Message-State: AOJu0Yx2Y12O8AIPsw2TeKDAJypUYahWkcY6FsljHfDc8Tqo0IXj2uHF tix3hHDFnHwiw1FfxMvvn+EmrKcu52N/ZdYW8sbvF0XN3PBKKgC2v9Sx9Z+EsIktbIftObSDi27 XRbIROVoNNakF0A== X-Received: from qtbkj1.prod.google.com ([2002:a05:622a:7781:b0:50e:5e33:ee38]) (user=edumazet job=prod-delivery.src-stubby-dispatcher) by 2002:a05:622a:9:b0:50e:89e6:669c with SMTP id d75a77b69052e-516c551500emr35571471cf.37.1779369560740; Thu, 21 May 2026 06:19:20 -0700 (PDT) Date: Thu, 21 May 2026 13:19:05 +0000 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: Mime-Version: 1.0 X-Mailer: git-send-email 2.54.0.669.g59709faab0-goog Message-ID: <20260521131916.3627204-1-edumazet@google.com> Subject: [PATCH net-next 00/11] bridge: prepare lockless br_port_fill_attrs() (I) From: Eric Dumazet To: "David S . Miller" , Jakub Kicinski , Paolo Abeni Cc: Simon Horman , netdev@vger.kernel.org, Ido Schimmel , Nikolay Aleksandrov , eric.dumazet@gmail.com, Eric Dumazet Content-Type: text/plain; charset="UTF-8" medium-term goal is to allow "ip link show" dump commands to run without RTNL. This round of patches adds/fixes some lockess accesses in bridge. This is not complete, more patches will come later. Ultimately all changes to p->flags should use set_bit()/clear_bit(). Eric Dumazet (11): bridge: add a READ_ONCE() in br_timer_value() bridge: add bridge_flags_bit enum bridge: use BR_PROMISC_BIT bridge: use BR_ADMIN_COST_BIT bridge: provide lockless access to p->path_cost bridge: provide lockless access to p->designated_cost bridge: provide lockless access to p->designated_port bridge: provide lockless access to p->priority bridge: provide lockless access to p->port_id bridge: provide lockless access to p->config_pending bridge: read p->flags once in br_port_fill_attrs() include/linux/if_bridge.h | 78 ++++++++++++++++++++++++++------------- net/bridge/br_if.c | 8 ++-- net/bridge/br_ioctl.c | 10 ++--- net/bridge/br_netlink.c | 55 ++++++++++++++------------- net/bridge/br_private.h | 2 +- net/bridge/br_stp.c | 38 ++++++++++--------- net/bridge/br_stp_if.c | 16 ++++---- net/bridge/br_stp_timer.c | 2 +- net/bridge/br_sysfs_if.c | 12 +++--- 9 files changed, 128 insertions(+), 93 deletions(-) -- 2.54.0.669.g59709faab0-goog