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authorChristian Lamparter <chunkeey@gmail.com>2021-10-24 02:45:25 +0200
committerChristian Lamparter <chunkeey@gmail.com>2021-10-24 11:20:22 +0200
commit36104dc51f5a4fef961b97aaaa8dfe753dfb5e04 (patch)
tree376e9c0a8fd1a3efc23bb8852dce410fe53d2585 /target/linux/generic
parentcb11eaf5dd2f443f46f1f73109a16c15551c2f3a (diff)
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kernel: 5.10: silence bogus "Missing #address-cells in interrupt provider" warnings
Rosen reported strange dtc warnings that had their origin in an upstream patch to 5.8-rc1. Upon further digging this revealed an ongoing thread [0] discussing the topic: > [...]I don't think we need a bunch of warning fix patches to add > these everywhere. Also, the need for #address-cells pretty much makes > no sense on any modern system. It is a relic from days when the bus > (address) topology and interrupt topology were related. and later on: > So really, we only need to be checking for #address-cells in nodes > with interrupt-map. This patch backports just the patch which removed the warning message (this is from the upstream dtc project [1] - but not the kernel). the patch does not add the checking of the #address-cells in nodes with interrupt-map. [0] <https://lore.kernel.org/linux-devicetree/91e3405245c89f134676449cf3822285798d2ed2.1612189652.git.michal.simek@xilinx.com/> [1] <https://git.kernel.org/pub/scm/utils/dtc/dtc.git/commit/?id=d8d1a9a77863a8c7031ae82a1d461aa78eb72a7b> Link: <https://github.com/openwrt/openwrt/pull/4685> Reported-by: Rosen Penev <rosenp@gmail.com> Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
Diffstat (limited to 'target/linux/generic')
-rw-r--r--target/linux/generic/pending-5.10/050-dtc-checks-Drop-interrupt-provider-address-cells-check.patch28
1 files changed, 28 insertions, 0 deletions
diff --git a/target/linux/generic/pending-5.10/050-dtc-checks-Drop-interrupt-provider-address-cells-check.patch b/target/linux/generic/pending-5.10/050-dtc-checks-Drop-interrupt-provider-address-cells-check.patch
new file mode 100644
index 0000000000..75f63728ec
--- /dev/null
+++ b/target/linux/generic/pending-5.10/050-dtc-checks-Drop-interrupt-provider-address-cells-check.patch
@@ -0,0 +1,28 @@
+From d8d1a9a77863a8c7031ae82a1d461aa78eb72a7b Mon Sep 17 00:00:00 2001
+From: Rob Herring <robh@kernel.org>
+Date: Mon, 11 Oct 2021 14:12:43 -0500
+Subject: [PATCH] checks: Drop interrupt provider '#address-cells' check
+
+'#address-cells' is only needed when parsing 'interrupt-map' properties, so
+remove it from the common interrupt-provider test.
+
+Cc: Andre Przywara <andre.przywara@arm.com>
+Reviewed-by: David Gibson <david@gibson.dropbear.id.au>
+Signed-off-by: Rob Herring <robh@kernel.org>
+Message-Id: <20211011191245.1009682-3-robh@kernel.org>
+Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
+---
+--- a/scripts/dtc/checks.c
++++ b/scripts/dtc/checks.c
+@@ -1569,11 +1569,6 @@ static void check_interrupt_provider(str
+ if (!prop)
+ FAIL(c, dti, node,
+ "Missing #interrupt-cells in interrupt provider");
+-
+- prop = get_property(node, "#address-cells");
+- if (!prop)
+- FAIL(c, dti, node,
+- "Missing #address-cells in interrupt provider");
+ }
+ WARNING(interrupt_provider, check_interrupt_provider, NULL);
+