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(60-250-196-139.hinet-ip.hinet.net. [60.250.196.139]) by smtp.gmail.com with ESMTPSA id 98e67ed59e1d1-3ab38f4863esm23169595a91.11.2026.10.12.23.33.44 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 12 Oct 2026 23:33:45 -0700 (PDT) From: a0282524688@gmail.com To: lee@kernel.org, Ming Yu Cc: linux-kernel@vger.kernel.org, mfd@lists.linux.dev Subject: [PATCH v9 03/12] mfd: nct6694: Ignore interrupts without a mapping Date: Tue, 13 Oct 2026 14:32:49 +0800 Message-Id: <20261013063259.2734757-4-a0282524688@gmail.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20261013063259.2734757-1-a0282524688@gmail.com> References: <20261013063259.2734757-1-a0282524688@gmail.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: 8bit From: Ming Yu The return value of irq_find_mapping() is passed straight to generic_handle_irq_safe(). If the device reports a hardware interrupt that has no mapping, irq_find_mapping() returns 0 and the handler of the system's IRQ 0 is invoked instead. Use generic_handle_domain_irq_safe(), which ignores unmapped hardware interrupts. Fixes: 51dad33ede63 ("mfd: Add core driver for Nuvoton NCT6694") Signed-off-by: Ming Yu --- Changes in v9: - None. Changes in v8: - New patch. Use generic_handle_domain_irq_safe() so that unmapped interrupts are ignored. drivers/mfd/nct6694.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/drivers/mfd/nct6694.c b/drivers/mfd/nct6694.c index de0027c98726..4f5a5b855de2 100644 --- a/drivers/mfd/nct6694.c +++ b/drivers/mfd/nct6694.c @@ -227,7 +227,7 @@ static void usb_int_callback(struct urb *urb) while (int_status) { int irq = __ffs(int_status); - generic_handle_irq_safe(irq_find_mapping(nct6694->domain, irq)); + generic_handle_domain_irq_safe(nct6694->domain, irq); int_status &= ~BIT(irq); } -- 2.34.1