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511c7ff032
Will be used for conversions in the following commit. Signed-off-by: Rosen Penev <rosenp@gmail.com>
140 lines
7.7 KiB
Diff
140 lines
7.7 KiB
Diff
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Dec 2023 15:16:15 -0800 (PST)
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Date: Wed, 06 Dec 2023 23:16:10 +0000
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In-Reply-To: <20231206-ethtool_puts_impl-v5-0-5a2528e17bf8@google.com>
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Message-ID: <20231206-ethtool_puts_impl-v5-1-5a2528e17bf8@google.com>
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Subject: [PATCH net-next v5 1/3] ethtool: Implement ethtool_puts()
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From: justinstitt@google.com
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To: "David S. Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>,
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Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Shay Agroskin <shayagr@amazon.com>,
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Arthur Kiyanovski <akiyano@amazon.com>, David Arinzon <darinzon@amazon.com>, Noam Dagan <ndagan@amazon.com>,
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Saeed Bishara <saeedb@amazon.com>, Rasesh Mody <rmody@marvell.com>,
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Sudarsana Kalluru <skalluru@marvell.com>, GR-Linux-NIC-Dev@marvell.com,
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Dimitris Michailidis <dmichail@fungible.com>, Yisen Zhuang <yisen.zhuang@huawei.com>,
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Salil Mehta <salil.mehta@huawei.com>, Jesse Brandeburg <jesse.brandeburg@intel.com>,
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Tony Nguyen <anthony.l.nguyen@intel.com>, Louis Peens <louis.peens@corigine.com>,
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Shannon Nelson <shannon.nelson@amd.com>, Brett Creeley <brett.creeley@amd.com>, drivers@pensando.io,
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"K. Y. Srinivasan" <kys@microsoft.com>, Haiyang Zhang <haiyangz@microsoft.com>, Wei Liu <wei.liu@kernel.org>,
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Dexuan Cui <decui@microsoft.com>, Ronak Doshi <doshir@vmware.com>,
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VMware PV-Drivers Reviewers <pv-drivers@vmware.com>, Andy Whitcroft <apw@canonical.com>, Joe Perches <joe@perches.com>,
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Dwaipayan Ray <dwaipayanray1@gmail.com>, Lukas Bulwahn <lukas.bulwahn@gmail.com>,
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Hauke Mehrtens <hauke@hauke-m.de>, Andrew Lunn <andrew@lunn.ch>,
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Florian Fainelli <f.fainelli@gmail.com>, Vladimir Oltean <olteanv@gmail.com>,
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"=?utf-8?q?Ar=C4=B1n=C3=A7_=C3=9CNAL?=" <arinc.unal@arinc9.com>, Daniel Golle <daniel@makrotopia.org>,
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Landen Chao <Landen.Chao@mediatek.com>, DENG Qingfang <dqfext@gmail.com>,
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Sean Wang <sean.wang@mediatek.com>, Matthias Brugger <matthias.bgg@gmail.com>,
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AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>,
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Linus Walleij <linus.walleij@linaro.org>,
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"=?utf-8?q?Alvin_=C5=A0ipraga?=" <alsi@bang-olufsen.dk>, Wei Fang <wei.fang@nxp.com>,
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Shenwei Wang <shenwei.wang@nxp.com>, Clark Wang <xiaoning.wang@nxp.com>,
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NXP Linux Team <linux-imx@nxp.com>, Lars Povlsen <lars.povlsen@microchip.com>,
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Steen Hegelund <Steen.Hegelund@microchip.com>, Daniel Machon <daniel.machon@microchip.com>,
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UNGLinuxDriver@microchip.com, Jiawen Wu <jiawenwu@trustnetic.com>,
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Mengyuan Lou <mengyuanlou@net-swift.com>, Heiner Kallweit <hkallweit1@gmail.com>,
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Russell King <linux@armlinux.org.uk>, Alexei Starovoitov <ast@kernel.org>,
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Daniel Borkmann <daniel@iogearbox.net>, Jesper Dangaard Brouer <hawk@kernel.org>,
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John Fastabend <john.fastabend@gmail.com>
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Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org,
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Nick Desaulniers <ndesaulniers@google.com>, Nathan Chancellor <nathan@kernel.org>,
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Kees Cook <keescook@chromium.org>, intel-wired-lan@lists.osuosl.org,
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oss-drivers@corigine.com, linux-hyperv@vger.kernel.org,
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linux-arm-kernel@lists.infradead.org, linux-mediatek@lists.infradead.org,
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bpf@vger.kernel.org, Justin Stitt <justinstitt@google.com>
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Content-Type: text/plain; charset="utf-8"
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Use strscpy() to implement ethtool_puts().
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Functionally the same as ethtool_sprintf() when it's used with two
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arguments or with just "%s" format specifier.
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Signed-off-by: Justin Stitt <justinstitt@google.com>
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---
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include/linux/ethtool.h | 13 +++++++++++++
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net/ethtool/ioctl.c | 7 +++++++
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2 files changed, 20 insertions(+)
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--- a/include/linux/ethtool.h
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+++ b/include/linux/ethtool.h
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@@ -843,4 +843,17 @@ int ethtool_get_phc_vclocks(struct net_d
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* next string.
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*/
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extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...);
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+
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+/**
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+ * ethtool_puts - Write string to ethtool string data
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+ * @data: Pointer to a pointer to the start of string to update
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+ * @str: String to write
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+ *
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+ * Write string to *data without a trailing newline. Update *data
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+ * to point at start of next string.
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+ *
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+ * Prefer this function to ethtool_sprintf() when given only
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+ * two arguments or if @fmt is just "%s".
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+ */
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+extern void ethtool_puts(u8 **data, const char *str);
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#endif /* _LINUX_ETHTOOL_H */
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--- a/net/ethtool/ioctl.c
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+++ b/net/ethtool/ioctl.c
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@@ -1974,6 +1974,13 @@ __printf(2, 3) void ethtool_sprintf(u8 *
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}
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EXPORT_SYMBOL(ethtool_sprintf);
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+void ethtool_puts(u8 **data, const char *str)
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+{
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+ strscpy(*data, str, ETH_GSTRING_LEN);
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+ *data += ETH_GSTRING_LEN;
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+}
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+EXPORT_SYMBOL(ethtool_puts);
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+
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static int ethtool_phys_id(struct net_device *dev, void __user *useraddr)
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{
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struct ethtool_value id;
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