lists  /  announce  owl-users  owl-dev  john-users  john-dev  passwdqc-users  yescrypt  popa3d-users  /  oss-security  kernel-hardening  musl  sabotage  tlsify  passwords  /  crypt-dev  xvendor  /  Bugtraq  Full-Disclosure  linux-kernel  linux-netdev  linux-ext4  linux-hardening  PHC 
Open Source and information security mailing list archives
Hash Suite: Windows password security audit tool. GUI, reports in PDF.
[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]
Date:   Fri,  1 May 2020 15:22:38 +0200
From:   Greg Kroah-Hartman <>
Cc:     Greg Kroah-Hartman <>,,
        Nicolas Saenz Julienne <>
Subject: [PATCH 5.6 005/106] ARM: dts: bcm283x: Add cells encoding format to firmware bus

From: Nicolas Saenz Julienne <>

commit be08d278eb09210fefbad4c9b27d7843f1c096b2 upstream.

With the introduction of 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's
firmware bus DMA limitations") the firmware bus has to comply with
/soc's DMA limitations. Ultimately linking both buses to a same
dma-ranges property. The patch (and author) missed the fact that a bus'
#address-cells and #size-cells properties are not inherited, but set to
a fixed value which, in this case, doesn't match /soc's. This, although
not breaking Linux's DMA mapping functionality, generates ugly dtc

Fix the issue by adding the correct address and size cells properties
under the firmware bus.

Fixes: 55c7c0621078 ("ARM: dts: bcm283x: Fix vc4's firmware bus DMA limitations")
Signed-off-by: Nicolas Saenz Julienne <>
Signed-off-by: Greg Kroah-Hartman <>

 arch/arm/boot/dts/bcm2835-rpi.dtsi |    3 +++
 1 file changed, 3 insertions(+)

--- a/arch/arm/boot/dts/bcm2835-rpi.dtsi
+++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi
@@ -14,6 +14,9 @@
 	soc {
 		firmware: firmware {
 			compatible = "raspberrypi,bcm2835-firmware", "simple-bus";
+			#address-cells = <1>;
+			#size-cells = <1>;
 			mboxes = <&mailbox>;

Powered by blists - more mailing lists