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Message-ID: <20231102-ethtool_puts_impl-v4-0-14e1e9278496@google.com>
Date: Thu, 02 Nov 2023 18:55:41 +0000
From: Justin Stitt <justinstitt@...gle.com>
To: "David S. Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Shay Agroskin <shayagr@...zon.com>,
Arthur Kiyanovski <akiyano@...zon.com>, David Arinzon <darinzon@...zon.com>, Noam Dagan <ndagan@...zon.com>,
Saeed Bishara <saeedb@...zon.com>, Rasesh Mody <rmody@...vell.com>,
Sudarsana Kalluru <skalluru@...vell.com>, GR-Linux-NIC-Dev@...vell.com,
Dimitris Michailidis <dmichail@...gible.com>, Yisen Zhuang <yisen.zhuang@...wei.com>,
Salil Mehta <salil.mehta@...wei.com>, Jesse Brandeburg <jesse.brandeburg@...el.com>,
Tony Nguyen <anthony.l.nguyen@...el.com>, Louis Peens <louis.peens@...igine.com>,
Shannon Nelson <shannon.nelson@....com>, Brett Creeley <brett.creeley@....com>, drivers@...sando.io,
"K. Y. Srinivasan" <kys@...rosoft.com>, Haiyang Zhang <haiyangz@...rosoft.com>, Wei Liu <wei.liu@...nel.org>,
Dexuan Cui <decui@...rosoft.com>, Ronak Doshi <doshir@...are.com>,
VMware PV-Drivers Reviewers <pv-drivers@...are.com>, Andy Whitcroft <apw@...onical.com>, Joe Perches <joe@...ches.com>,
Dwaipayan Ray <dwaipayanray1@...il.com>, Lukas Bulwahn <lukas.bulwahn@...il.com>,
Hauke Mehrtens <hauke@...ke-m.de>, Andrew Lunn <andrew@...n.ch>,
Florian Fainelli <f.fainelli@...il.com>, Vladimir Oltean <olteanv@...il.com>,
"Arınç ÜNAL" <arinc.unal@...nc9.com>, Daniel Golle <daniel@...rotopia.org>,
Landen Chao <Landen.Chao@...iatek.com>, DENG Qingfang <dqfext@...il.com>,
Sean Wang <sean.wang@...iatek.com>, Matthias Brugger <matthias.bgg@...il.com>,
AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
Linus Walleij <linus.walleij@...aro.org>,
"Alvin Šipraga" <alsi@...g-olufsen.dk>, Wei Fang <wei.fang@....com>,
Shenwei Wang <shenwei.wang@....com>, Clark Wang <xiaoning.wang@....com>,
NXP Linux Team <linux-imx@....com>, Lars Povlsen <lars.povlsen@...rochip.com>,
Steen Hegelund <Steen.Hegelund@...rochip.com>, Daniel Machon <daniel.machon@...rochip.com>,
UNGLinuxDriver@...rochip.com, Jiawen Wu <jiawenwu@...stnetic.com>,
Mengyuan Lou <mengyuanlou@...-swift.com>, Heiner Kallweit <hkallweit1@...il.com>,
Russell King <linux@...linux.org.uk>, Alexei Starovoitov <ast@...nel.org>,
Daniel Borkmann <daniel@...earbox.net>, Jesper Dangaard Brouer <hawk@...nel.org>,
John Fastabend <john.fastabend@...il.com>
Cc: linux-kernel@...r.kernel.org, netdev@...r.kernel.org,
Nick Desaulniers <ndesaulniers@...gle.com>, Nathan Chancellor <nathan@...nel.org>,
Kees Cook <keescook@...omium.org>, intel-wired-lan@...ts.osuosl.org,
oss-drivers@...igine.com, linux-hyperv@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org, linux-mediatek@...ts.infradead.org,
bpf@...r.kernel.org, Justin Stitt <justinstitt@...gle.com>
Subject: [PATCH net-next v4 0/3] ethtool: Add ethtool_puts()
Hi,
This series aims to implement ethtool_puts() and send out a wave 1 of
conversions from ethtool_sprintf(). There's also a checkpatch patch
included to check for the cases listed below.
This was sparked from recent discussion here [1]
The conversions are used in cases where ethtool_sprintf() was being used
with just two arguments:
| ethtool_sprintf(&data, buffer[i].name);
or when it's used with format string: "%s"
| ethtool_sprintf(&data, "%s", buffer[i].name);
which both now become:
| ethtool_puts(&data, buffer[i].name);
The first case commonly triggers a -Wformat-security warning with Clang
due to potential problems with format flags present in the strings [3].
The second is just a bit weird with a plain-ol' "%s".
Changes found with Cocci [4] and grep [5].
[1]: https://lore.kernel.org/all/202310141935.B326C9E@keescook/
[2]: https://lore.kernel.org/all/?q=dfb%3Aethtool_sprintf+AND+f%3Ajustinstitt
[3]: https://lore.kernel.org/all/202310101528.9496539BE@keescook/
[4]: (script authored by Kees w/ modifications from Joe)
@replace_2_args@
expression BUF;
expression VAR;
@@
- ethtool_sprintf(BUF, VAR)
+ ethtool_puts(BUF, VAR)
@replace_3_args@
expression BUF;
expression VAR;
@@
- ethtool_sprintf(BUF, "%s", VAR)
+ ethtool_puts(BUF, VAR)
- ethtool_sprintf(&BUF, "%s", VAR)
+ ethtool_puts(&BUF, VAR)
[5]: $ rg "ethtool_sprintf\(\s*[^,)]+\s*,\s*[^,)]+\s*\)"
Signed-off-by: Justin Stitt <justinstitt@...gle.com>
---
Changes in v4:
- update documentation to match:
https://lore.kernel.org/all/20231028192511.100001-1-andrew@lunn.ch/
- Link to v3: https://lore.kernel.org/r/20231027-ethtool_puts_impl-v3-0-3466ac679304@google.com
Changes in v3:
- fix force_speed_maps merge conflict + formatting (thanks Vladimir)
- rebase onto net-next (thanks Andrew, Vladimir)
- change subject (thanks Vladimir)
- fix checkpatch formatting + implementation (thanks Joe)
- Link to v2: https://lore.kernel.org/r/20231026-ethtool_puts_impl-v2-0-0d67cbdd0538@google.com
Changes in v2:
- wrap lines better in replacement (thanks Joe, Kees)
- add --fix to checkpatch (thanks Joe)
- clean up checkpatch formatting (thanks Joe, et al.)
- rebase against next
- Link to v1: https://lore.kernel.org/r/20231025-ethtool_puts_impl-v1-0-6a53a93d3b72@google.com
---
Justin Stitt (3):
ethtool: Implement ethtool_puts()
checkpatch: add ethtool_sprintf rules
net: Convert some ethtool_sprintf() to ethtool_puts()
drivers/net/dsa/lantiq_gswip.c | 2 +-
drivers/net/dsa/mt7530.c | 2 +-
drivers/net/dsa/qca/qca8k-common.c | 2 +-
drivers/net/dsa/realtek/rtl8365mb.c | 2 +-
drivers/net/dsa/realtek/rtl8366-core.c | 2 +-
drivers/net/dsa/vitesse-vsc73xx-core.c | 8 +--
drivers/net/ethernet/amazon/ena/ena_ethtool.c | 4 +-
drivers/net/ethernet/brocade/bna/bnad_ethtool.c | 2 +-
drivers/net/ethernet/freescale/fec_main.c | 4 +-
.../net/ethernet/fungible/funeth/funeth_ethtool.c | 8 +--
drivers/net/ethernet/hisilicon/hns/hns_dsaf_gmac.c | 2 +-
.../net/ethernet/hisilicon/hns/hns_dsaf_xgmac.c | 2 +-
drivers/net/ethernet/hisilicon/hns/hns_ethtool.c | 65 +++++++++++-----------
drivers/net/ethernet/intel/i40e/i40e_ethtool.c | 6 +-
drivers/net/ethernet/intel/iavf/iavf_ethtool.c | 3 +-
drivers/net/ethernet/intel/ice/ice_ethtool.c | 9 +--
drivers/net/ethernet/intel/idpf/idpf_ethtool.c | 2 +-
drivers/net/ethernet/intel/igb/igb_ethtool.c | 6 +-
drivers/net/ethernet/intel/igc/igc_ethtool.c | 6 +-
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 5 +-
.../net/ethernet/microchip/sparx5/sparx5_ethtool.c | 2 +-
.../net/ethernet/netronome/nfp/nfp_net_ethtool.c | 44 +++++++--------
drivers/net/ethernet/pensando/ionic/ionic_stats.c | 4 +-
drivers/net/ethernet/wangxun/libwx/wx_ethtool.c | 2 +-
drivers/net/hyperv/netvsc_drv.c | 4 +-
drivers/net/phy/nxp-tja11xx.c | 2 +-
drivers/net/phy/smsc.c | 2 +-
drivers/net/vmxnet3/vmxnet3_ethtool.c | 10 ++--
include/linux/ethtool.h | 13 +++++
net/ethtool/ioctl.c | 7 +++
scripts/checkpatch.pl | 19 +++++++
31 files changed, 139 insertions(+), 112 deletions(-)
---
base-commit: 3a04927f8d4b7a4f008f04af41e31173002eb1ea
change-id: 20231025-ethtool_puts_impl-a1479ffbc7e0
Best regards,
--
Justin Stitt <justinstitt@...gle.com>
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