From: Steven Rostedt <rostedt@goodmis.org>
To: Alejandro Colomar <alx@kernel.org>
Cc: linux-hardening@vger.kernel.org,
Krzysztof Kozlowski <krzk@kernel.org>,
"Maciej W. Rozycki" <macro@orcam.me.uk>,
Geert Uytterhoeven <geert@linux-m68k.org>,
Andreas Schwab <schwab@linux-m68k.org>,
Andy Shevchenko <andy@kernel.org>,
Bartosz Golaszewski <brgl@kernel.org>,
Daniel Scally <djrscally@gmail.com>,
Danilo Krummrich <dakr@kernel.org>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Hans Verkuil <hverkuil-cisco@xs4all.nl>,
Heikki Krogerus <heikki.krogerus@linux.intel.com>,
Joe Perches <joe@perches.com>, Johan Hovold <johan@kernel.org>,
Kees Cook <kees@kernel.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
Len Brown <lenb@kernel.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
Linus Walleij <linusw@kernel.org>,
Namhyung Kim <namhyung@kernel.org>,
"Rafael J. Wysocki" <rafael@kernel.org>,
Rob Herring <robh@kernel.org>,
Sakari Ailus <sakari.ailus@linux.intel.com>,
Saravana Kannan <saravanak@kernel.org>,
Tom Zanussi <zanussi@kernel.org>,
linux-acpi@vger.kernel.org, driver-core@lists.linux.dev,
linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
linux-gpio@vger.kernel.org,
Bartosz Golaszewski <bartosz.golaszewski@oss.qualcomm.com>
Subject: Re: [PATCH v3 1/5] string: Add strprefix(), and deprecate str_has_prefix()
Date: Wed, 11 Nov 2026 03:43:52 -0500 [thread overview]
Message-ID: <20261111034352.5c45e30f@fedora> (raw)
In-Reply-To: <556766412884389a7cecfe6affcc9fa3a78f9807.1794323750.git.alx@kernel.org>
On Tue, 10 Nov 2026 16:33:23 +0100
Alejandro Colomar <alx@kernel.org> wrote:
> +/**
> + * str_has_prefix - Test if a string has a given prefix
> + * @str: The string to test
> + * @prefix: The string to see if @str starts with
> + *
> + * DEPRECATED: Use strprefix()
I'm still not convinced, so NAK on this part.
-- Steve
> + *
> + * A common way to test a prefix of a string is to do:
> + * strncmp(str, prefix, sizeof(prefix) - 1)
> + *
> + * But this can lead to bugs due to typos, or if prefix is a pointer
> + * and not a constant. Instead use strprefix().
> *
next prev parent reply other threads:[~2026-11-11 8:44 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-11-10 15:33 [PATCH v3 0/5] Add strprefix() and fix a bug with it Alejandro Colomar
2026-11-10 15:33 ` [PATCH v3 1/5] string: Add strprefix(), and deprecate str_has_prefix() Alejandro Colomar
2026-11-10 15:47 ` Joe Perches
2026-11-10 16:14 ` Alejandro Colomar
2026-11-11 8:43 ` Steven Rostedt [this message]
2026-11-10 15:33 ` [PATCH v3 2/5] device property: Fix fwnode_name_eq() for empty node names Alejandro Colomar
2026-11-10 15:33 ` [PATCH v3 3/5] stddef: Add const_cast() Alejandro Colomar
2026-11-10 15:33 ` [PATCH v3 4/5] string: Add [C]QChar_of() and QVoid_of() Alejandro Colomar
2026-11-10 15:33 ` [PATCH v3 5/5] string: Make strprefix() const-qualifier-generic Alejandro Colomar
2026-11-10 16:32 ` Joe Perches
2026-11-10 23:27 ` Alejandro Colomar
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