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[93.34.90.37]) by smtp.googlemail.com with ESMTPSA id 5b1f17b1804b1-4771e387a14sm47955195e9.3.2025.10.29.06.33.31 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 29 Oct 2025 06:33:32 -0700 (PDT) From: Christian Marangi To: Ilia Lin , "Rafael J. Wysocki" , Viresh Kumar , Bjorn Andersson , Konrad Dybcio , Christian Marangi , Raag Jadav , Arnd Bergmann , Andy Shevchenko , linux-arm-msm@vger.kernel.org, linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: [PATCH 1/3] err.h: add ERR_PTR_CONST macro Date: Wed, 29 Oct 2025 14:33:19 +0100 Message-ID: <20251029133323.24565-1-ansuelsmth@gmail.com> X-Mailer: git-send-email 2.51.0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Add ERR_PTR_CONST macro to initialize global variables with error pointers. This might be useful for specific case where there is a global variables initialized to an error condition and then later set to the real handle once probe finish/completes. Signed-off-by: Christian Marangi --- include/linux/err.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/err.h b/include/linux/err.h index 1d60aa86db53..a38071881b20 100644 --- a/include/linux/err.h +++ b/include/linux/err.h @@ -41,6 +41,14 @@ static inline void * __must_check ERR_PTR(long error) return (void *) error; } +/** + * ERR_PTR_CONST - define a const error pointer. + * @error: A negative error code. + * + * Like ERR_PTR(), but usable to initialize global variables. + */ +#define ERR_PTR_CONST(error) ((void *)(error)) + /* Return the pointer in the percpu address space. */ #define ERR_PTR_PCPU(error) ((void __percpu *)(unsigned long)ERR_PTR(error)) -- 2.51.0