Message ID | 20231206-ethtool_puts_impl-v5-1-5a2528e17bf8@google.com |
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State | New |
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Miller" <davem@davemloft.net>, Eric Dumazet <edumazet@google.com>, Jakub Kicinski <kuba@kernel.org>, Paolo Abeni <pabeni@redhat.com>, Shay Agroskin <shayagr@amazon.com>, Arthur Kiyanovski <akiyano@amazon.com>, David Arinzon <darinzon@amazon.com>, Noam Dagan <ndagan@amazon.com>, Saeed Bishara <saeedb@amazon.com>, Rasesh Mody <rmody@marvell.com>, Sudarsana Kalluru <skalluru@marvell.com>, GR-Linux-NIC-Dev@marvell.com, Dimitris Michailidis <dmichail@fungible.com>, Yisen Zhuang <yisen.zhuang@huawei.com>, Salil Mehta <salil.mehta@huawei.com>, Jesse Brandeburg <jesse.brandeburg@intel.com>, Tony Nguyen <anthony.l.nguyen@intel.com>, Louis Peens <louis.peens@corigine.com>, Shannon Nelson <shannon.nelson@amd.com>, Brett Creeley <brett.creeley@amd.com>, drivers@pensando.io, "K. Y. 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Series |
ethtool: Add ethtool_puts()
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Commit Message
Justin Stitt
Dec. 6, 2023, 11:16 p.m. UTC
Use strscpy() to implement ethtool_puts().
Functionally the same as ethtool_sprintf() when it's used with two
arguments or with just "%s" format specifier.
Signed-off-by: Justin Stitt <justinstitt@google.com>
---
include/linux/ethtool.h | 13 +++++++++++++
net/ethtool/ioctl.c | 7 +++++++
2 files changed, 20 insertions(+)
Comments
On 12/7/23 00:16, justinstitt@google.com wrote: > Use strscpy() to implement ethtool_puts(). > > Functionally the same as ethtool_sprintf() when it's used with two > arguments or with just "%s" format specifier. > > Signed-off-by: Justin Stitt <justinstitt@google.com> > --- > include/linux/ethtool.h | 13 +++++++++++++ > net/ethtool/ioctl.c | 7 +++++++ > 2 files changed, 20 insertions(+) > Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
On Wed, Dec 06, 2023 at 11:16:10PM +0000, justinstitt@google.com wrote: > Use strscpy() to implement ethtool_puts(). > > Functionally the same as ethtool_sprintf() when it's used with two > arguments or with just "%s" format specifier. > > Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Andrew
> Use strscpy() to implement ethtool_puts(). > > Functionally the same as ethtool_sprintf() when it's used with two arguments > or with just "%s" format specifier. > > Signed-off-by: Justin Stitt <justinstitt@google.com> Reviewed-by: Madhuri Sripada <madhuri.sripada@microchip.com>
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h index 689028257fcc..2480a4e4a331 100644 --- a/include/linux/ethtool.h +++ b/include/linux/ethtool.h @@ -1053,6 +1053,19 @@ static inline int ethtool_mm_frag_size_min_to_add(u32 val_min, u32 *val_add, */ extern __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...); +/** + * ethtool_puts - Write string to ethtool string data + * @data: Pointer to a pointer to the start of string to update + * @str: String to write + * + * Write string to *data without a trailing newline. Update *data + * to point at start of next string. + * + * Prefer this function to ethtool_sprintf() when given only + * two arguments or if @fmt is just "%s". + */ +extern void ethtool_puts(u8 **data, const char *str); + /* Link mode to forced speed capabilities maps */ struct ethtool_forced_speed_map { u32 speed; diff --git a/net/ethtool/ioctl.c b/net/ethtool/ioctl.c index 0b0ce4f81c01..abdf05edf804 100644 --- a/net/ethtool/ioctl.c +++ b/net/ethtool/ioctl.c @@ -1991,6 +1991,13 @@ __printf(2, 3) void ethtool_sprintf(u8 **data, const char *fmt, ...) } EXPORT_SYMBOL(ethtool_sprintf); +void ethtool_puts(u8 **data, const char *str) +{ + strscpy(*data, str, ETH_GSTRING_LEN); + *data += ETH_GSTRING_LEN; +} +EXPORT_SYMBOL(ethtool_puts); + static int ethtool_phys_id(struct net_device *dev, void __user *useraddr) { struct ethtool_value id;