From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 71F5022D60 for ; Mon, 12 Jun 2023 21:49:51 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 97CC3C433D2; Mon, 12 Jun 2023 21:49:50 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1686606590; bh=IJihOlmWMddOykv9Y5at7DU8A+a+FtVTvPEcmiTR1Pg=; h=From:To:Cc:Subject:Date:From; b=WtiNeuyuXNp1PIMUstC00GdTneG7JCSu02QTsW2dm+4Wd7nlpNUOhEmfTn1t5hf2R YZGOZx3kzMQdFPpEew2Lrb0ZPUIyE6d7EzHQnLQDeTtj+DjMM9SHxX6HuU7qa16uv2 ZbXwMqA8PUn18BspMbpeDm3Iz7jonHYvCntnuGqZ8/8KB7WRCSTeGbFbrCTkboiPZv xzl6mQBg3wMYULnP7EtahmD18QOBNofcrwt3zmbx2nj2+aejUXUMAOMXRBaLyyZZCD LF8c/qbhPPO08LqkNFMZd9jHKGBr4yL//o/d/1rKWw6uQNXv5bNOs2VaJ//P/dx4nF 2QSigYmZuBY9w== From: Jakub Kicinski To: davem@davemloft.net Cc: netdev@vger.kernel.org, edumazet@google.com, pabeni@redhat.com, dsahern@gmail.com, Jakub Kicinski Subject: [PATCH net-next v2 0/2] net: create device lookup API with reference tracking Date: Mon, 12 Jun 2023 14:49:42 -0700 Message-Id: <20230612214944.1837648-1-kuba@kernel.org> X-Mailer: git-send-email 2.40.1 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit We still see dev_hold() / dev_put() calls without reference tracker getting added in new code. dev_get_by_name() / dev_get_by_index() seem to be one of the sources of those. Provide appropriate helpers. Allocating the tracker can obviously be done with an additional call to netdev_tracker_alloc(), but a single API feels cleaner. v2: - fix a dev_put() in ethtool v1: https://lore.kernel.org/all/20230609183207.1466075-1-kuba@kernel.org/ Jakub Kicinski (2): net: create device lookup API with reference tracking netpoll: allocate netdev tracker right away include/linux/netdevice.h | 4 +++ net/core/dev.c | 75 ++++++++++++++++++++++++++------------- net/core/netpoll.c | 5 ++- net/ethtool/netlink.c | 10 +++--- net/ipv6/route.c | 12 +++---- 5 files changed, 68 insertions(+), 38 deletions(-) -- 2.40.1