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[82.69.66.36]) by smtp.gmail.com with ESMTPSA id 5b1f17b1804b1-48518839ae7sm36391845e9.1.2026.03.04.02.16.57 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 04 Mar 2026 02:16:57 -0800 (PST) Date: Wed, 4 Mar 2026 10:16:55 +0000 From: David Laight To: Rodrigo Alencar via B4 Relay Cc: rodrigo.alencar@analog.com, linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-doc@vger.kernel.org, Jonathan Cameron , David Lechner , Andy Shevchenko , Lars-Peter Clausen , Michael Hennerich , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Jonathan Corbet , Andrew Morton Subject: Re: [PATCH v8 02/10] lib: kstrtox: add kstrntoull() helper Message-ID: <20260304101655.620df7ee@pumpkin> In-Reply-To: <20260303-adf41513-iio-driver-v8-2-8dd2417cc465@analog.com> References: <20260303-adf41513-iio-driver-v8-0-8dd2417cc465@analog.com> <20260303-adf41513-iio-driver-v8-2-8dd2417cc465@analog.com> X-Mailer: Claws Mail 4.1.1 (GTK 3.24.38; arm-unknown-linux-gnueabihf) Precedence: bulk X-Mailing-List: linux-doc@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Tue, 03 Mar 2026 13:27:07 +0000 Rodrigo Alencar via B4 Relay wrote: > From: Rodrigo Alencar > > Add kstrntoull() function, which converts a string to an ULL with a max > character limit. The function is an alternative integer parsing function > that does not require a null-terminated string. It becomes a better option > over simple_strtoull() or kstrtoull() when parsing integers from a buffer > with custom delimiters without having to create temporary copies. > The function is consumed inside the implementation _kstrtoull(), > promoting reuse. If you've got custom delimiters use a function that returns a pointer to the character that terminated the conversion. They save you having to find the delimiter as well as taking a copy. David