Hi Stable maintainers,
On 12/5/22 06:21, irqchip-bot for Sean Anderson wrote:
The following commit has been merged into the irq/irqchip-next branch of irqchip:
Commit-ID: 3ae977d0e4e3a2a2ccc912ca2d20c9430508ecdd Gitweb: https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/3ae977d0e4... Author: Sean Anderson sean.anderson@seco.com AuthorDate: Thu, 01 Dec 2022 16:28:07 -05:00 Committer: Marc Zyngier maz@kernel.org CommitterDate: Mon, 05 Dec 2022 10:39:52
irqchip/ls-extirq: Fix endianness detection
parent is the interrupt parent, not the parent of node. Use node->parent. This fixes endianness detection on big-endian platforms.
Fixes: 1b00adce8afd ("irqchip/ls-extirq: Fix invalid wait context by avoiding to use regmap") Signed-off-by: Sean Anderson sean.anderson@seco.com Signed-off-by: Marc Zyngier maz@kernel.org Link: https://lore.kernel.org/r/20221201212807.616191-1-sean.anderson@seco.com
drivers/irqchip/irq-ls-extirq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/irqchip/irq-ls-extirq.c b/drivers/irqchip/irq-ls-extirq.c index d8d48b1..139f26b 100644 --- a/drivers/irqchip/irq-ls-extirq.c +++ b/drivers/irqchip/irq-ls-extirq.c @@ -203,7 +203,7 @@ ls_extirq_of_init(struct device_node *node, struct device_node *parent) if (ret) goto err_parse_map;
priv->big_endian = of_device_is_big_endian(parent);
priv->big_endian = of_device_is_big_endian(node->parent); priv->is_ls1021a_or_ls1043a = of_device_is_compatible(node, "fsl,ls1021a-extirq") || of_device_is_compatible(node, "fsl,ls1043a-extirq"); raw_spin_lock_init(&priv->lock);
This patch has made it into linux/master, but it should also get backported to 6.1. Just want to make sure this doesn't fall through the cracks, since this was a really annoying bug to deal with (causes an IRQ storm).
--Sean