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Wed, 05 May 2021 16:32:41 +0000 Received: by mail.kernel.org (Postfix) with ESMTPSA id 8454461432; Wed, 5 May 2021 16:32:38 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1620232359; bh=B+EMqvSUBUldqZ6ClL7veoudJmVUUSPY1yhJymXxLwk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=Ci+VNHpbMLyOjkOt+WN3mkr/R0g2c2j/crp9bQP62qH2dsfu/bhMItFH/rHU2Nk2P A20xhFMuQW1h65AqNjKD2/nyDWmOp1u7azsw/orLHpKYzydQ6p58ExURfalj8QLNG1 Ah3eWeqbN03e20e0A8i8mYWehujz/7mY2+vKapmtCYP3F4fw5tHmUs9n3yGImvVs2L CNntwrKvr83HYoO5lmZr3j4XqMQIGthAZGRR0bCWVvGSKNAKJLDZwegg43tKrlc+/R dRj2RzXgnUzkSlE7rFIn2Pgy7GxqmcRbiILBzEMETgLYvUHG7R+2FzUidTk/yThN9E 4QUXSzJ0pcq3A== From: Sasha Levin To: linux-kernel@vger.kernel.org, stable@vger.kernel.org Cc: Krzysztof Kozlowski , Sylwester Nawrocki , Linus Walleij , Sasha Levin , linux-arm-kernel@lists.infradead.org, linux-samsung-soc@vger.kernel.org, linux-gpio@vger.kernel.org Subject: [PATCH AUTOSEL 5.12 054/116] pinctrl: samsung: use 'int' for register masks in Exynos Date: Wed, 5 May 2021 12:30:22 -0400 Message-Id: <20210505163125.3460440-54-sashal@kernel.org> X-Mailer: git-send-email 2.30.2 In-Reply-To: <20210505163125.3460440-1-sashal@kernel.org> References: <20210505163125.3460440-1-sashal@kernel.org> MIME-Version: 1.0 X-stable: review X-Patchwork-Hint: Ignore X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20210505_093239_915066_A1C91E91 X-CRM114-Status: GOOD ( 11.80 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org From: Krzysztof Kozlowski [ Upstream commit fa0c10a5f3a49130dd11281aa27e7e1c8654abc7 ] The Special Function Registers on all Exynos SoC, including ARM64, are 32-bit wide, so entire driver uses matching functions like readl() or writel(). On 64-bit ARM using unsigned long for register masks: 1. makes little sense as immediately after bitwise operation it will be cast to 32-bit value when calling writel(), 2. is actually error-prone because it might promote other operands to 64-bit. Addresses-Coverity: Unintentional integer overflow Signed-off-by: Krzysztof Kozlowski Reviewed-by: Sylwester Nawrocki Link: https://lore.kernel.org/r/20210408195029.69974-1-krzysztof.kozlowski@canonical.com Signed-off-by: Linus Walleij Signed-off-by: Sasha Levin --- drivers/pinctrl/samsung/pinctrl-exynos.c | 10 +++++----- 1 file changed, 5 insertions(+), 5 deletions(-) diff --git a/drivers/pinctrl/samsung/pinctrl-exynos.c b/drivers/pinctrl/samsung/pinctrl-exynos.c index 0cd7f33cdf25..2b99f4130e1e 100644 --- a/drivers/pinctrl/samsung/pinctrl-exynos.c +++ b/drivers/pinctrl/samsung/pinctrl-exynos.c @@ -55,7 +55,7 @@ static void exynos_irq_mask(struct irq_data *irqd) struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip); struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd); unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset; - unsigned long mask; + unsigned int mask; unsigned long flags; raw_spin_lock_irqsave(&bank->slock, flags); @@ -83,7 +83,7 @@ static void exynos_irq_unmask(struct irq_data *irqd) struct exynos_irq_chip *our_chip = to_exynos_irq_chip(chip); struct samsung_pin_bank *bank = irq_data_get_irq_chip_data(irqd); unsigned long reg_mask = our_chip->eint_mask + bank->eint_offset; - unsigned long mask; + unsigned int mask; unsigned long flags; /* @@ -483,7 +483,7 @@ static void exynos_irq_eint0_15(struct irq_desc *desc) chained_irq_exit(chip, desc); } -static inline void exynos_irq_demux_eint(unsigned long pend, +static inline void exynos_irq_demux_eint(unsigned int pend, struct irq_domain *domain) { unsigned int irq; @@ -500,8 +500,8 @@ static void exynos_irq_demux_eint16_31(struct irq_desc *desc) { struct irq_chip *chip = irq_desc_get_chip(desc); struct exynos_muxed_weint_data *eintd = irq_desc_get_handler_data(desc); - unsigned long pend; - unsigned long mask; + unsigned int pend; + unsigned int mask; int i; chained_irq_enter(chip, desc); -- 2.30.2 _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel