This is a note to let you know that I've just added the patch titled ARM: 9120/1: Revert "amba: make use of -1 IRQs warn" to the 5.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: arm-9120-1-revert-amba-make-use-of-1-irqs-warn.patch and it can be found in the queue-5.14 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From eb4f756915875b0ea0757751cd29841f0504d547 Mon Sep 17 00:00:00 2001 From: Wang Kefeng <wangkefeng.wang@xxxxxxxxxx> Date: Mon, 23 Aug 2021 10:41:42 +0100 Subject: ARM: 9120/1: Revert "amba: make use of -1 IRQs warn" From: Wang Kefeng <wangkefeng.wang@xxxxxxxxxx> commit eb4f756915875b0ea0757751cd29841f0504d547 upstream. After commit 77a7300abad7 ("of/irq: Get rid of NO_IRQ usage"), no irq case has been removed, irq_of_parse_and_map() will return 0 in all cases when get error from parse and map an interrupt into linux virq space. amba_device_register() is only used on no-DT initialization, see s3c64xx_pl080_init() arch/arm/mach-s3c/pl080.c ep93xx_init_devices() arch/arm/mach-ep93xx/core.c They won't set -1 to irq[0], so no need the warn. This reverts commit 2eac58d5026e4ec8b17ff8b62877fea9e1d2f1b3. Reviewed-by: Rob Herring <robh@xxxxxxxxxx> Signed-off-by: Kefeng Wang <wangkefeng.wang@xxxxxxxxxx> Signed-off-by: Russell King (Oracle) <rmk+kernel@xxxxxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/amba/bus.c | 3 --- 1 file changed, 3 deletions(-) --- a/drivers/amba/bus.c +++ b/drivers/amba/bus.c @@ -379,9 +379,6 @@ static int amba_device_try_add(struct am void __iomem *tmp; int i, ret; - WARN_ON(dev->irq[0] == (unsigned int)-1); - WARN_ON(dev->irq[1] == (unsigned int)-1); - ret = request_resource(parent, &dev->res); if (ret) goto err_out; Patches currently in stable-queue which might be from wangkefeng.wang@xxxxxxxxxx are queue-5.14/arm-9120-1-revert-amba-make-use-of-1-irqs-warn.patch