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Wed, 11 Mar 2026 10:54:04 -0700 (PDT) Received: from hyd-e160-a08-1-06.qualcomm.com ([202.46.22.19]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-35a0bc58b44sm1420658a91.3.2026.03.11.10.54.01 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 11 Mar 2026 10:54:04 -0700 (PDT) From: Rahul Joshi To: rmfrfs@gmail.com, johan@kernel.org, elder@kernel.org, gregkh@linuxfoundation.org Cc: greybus-dev@lists.linaro.org, linux-staging@lists.linux.dev, linux-kernel@vger.kernel.org, Rahul Joshi Subject: [PATCH] staging: greybus: gpio: add comment to mutex definition Date: Wed, 11 Mar 2026 23:23:34 +0530 Message-Id: <20260311175334.464391-1-rj5547884@gmail.com> X-Mailer: git-send-email 2.34.1 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" The irq_lock mutex is missing a comment describing what it protects, which is required by kernel coding style. Add a comment clarifying that it serializes IRQ bus lock/unlock operations used to defer and sync pending IRQ type and mask changes to hardware. Signed-off-by: Rahul Joshi --- drivers/staging/greybus/gpio.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/staging/greybus/gpio.c b/drivers/staging/greybus/gpio.c index 12185f7a982c..89c15b804b2a 100644 --- a/drivers/staging/greybus/gpio.c +++ b/drivers/staging/greybus/gpio.c @@ -39,7 +39,7 @@ struct gb_gpio_controller { =20 struct gpio_chip chip; struct irq_chip irqc; - struct mutex irq_lock; + struct mutex irq_lock; /* protects irq bus operations */ }; =20 static struct gpio_chip *irq_data_to_gpio_chip(struct irq_data *d) --=20 2.34.1