[PATCH master 1/3] virtio: ring: fix stale data in queue after reset

[PATCH master 1/3] virtio: ring: fix stale data in queue after reset

[Ahmad Fatoum]

When resetting barebox for QEMU Virt or chainloading it, the log is
spammed with:

  virtio_net virtio1: id 65536 out of range

This is because we have two ways to allocate the vrings, either via
dma_alloc_coherent or memalign and the latter doesn't zero the queues.

A better fix that makes use of the DMA APIs unconditionally will follow
in a later release.

Co-developed-by: Claude <noreply@claude.ai>
[ahmad: Claude was pointed at QEMU, Linux and U-Boot implementations
 and found the discrepancy, but had a different less efficient fix]

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 drivers/virtio/virtio_ring.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index c1c84e49615f..8b6469f54d2a 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -369,6 +369,8 @@ static void *vring_alloc_queue(struct virtio_device *vdev,
 			phys_addr_t phys_addr = virt_to_phys(queue);
 			*dma_handle = (dma_addr_t)phys_addr;
 
+			memset(queue, 0x00, PAGE_ALIGN(size));
+
 			/*
 			 * Sanity check: make sure we dind't truncate
 			 * the address.  The only arches I can find that
-- 
2.47.3

[PATCH master 2/3] scripts: Makefile.lib: suppress graph_port warnings for overlays

[Ahmad Fatoum]

In overlays, often only part of a graph is applied with the rest in the
base device tree, so this warning is seldom useful. Disable it.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 scripts/Makefile.lib | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/scripts/Makefile.lib b/scripts/Makefile.lib
index 66e690fbfd67..0dbaa071cfc3 100644
--- a/scripts/Makefile.lib
+++ b/scripts/Makefile.lib
@@ -397,7 +397,7 @@ ifeq ($(CONFIG_OF_OVERLAY_LIVE), y)
 DTC_FLAGS.dtb += -@
 endif
 
-DTC_FLAGS.dtbo += -Wno-avoid_default_addr_size -Wno-reg_format
+DTC_FLAGS.dtbo += -Wno-avoid_default_addr_size -Wno-reg_format -Wno-graph_port
 
 # Generate an assembly file to wrap the output of the device tree compiler
 quiet_cmd_dt_S_dtb = DTB     $@
-- 
2.47.3

[PATCH master 3/3] ARM: Rockchip: rk3576-prtpuk: suppress video graph warning

[Ahmad Fatoum]

The &vp0 is incomplete and results in a warning, so move it into the
comment.

Signed-off-by: Ahmad Fatoum <a.fatoum@barebox.org>
---
 arch/arm/dts/rk3576-prtpuk-linux.dts | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/arch/arm/dts/rk3576-prtpuk-linux.dts b/arch/arm/dts/rk3576-prtpuk-linux.dts
index 2085adbaa8f4..7cc28711df28 100644
--- a/arch/arm/dts/rk3576-prtpuk-linux.dts
+++ b/arch/arm/dts/rk3576-prtpuk-linux.dts
@@ -444,6 +444,7 @@ &vop_mmu {
 	status = "okay";
 };
 
+#if 0
 &vp0 {
 	vp0_out_dsi1: endpoint@ROCKCHIP_VOP2_EP_DP0 {
 		reg = <ROCKCHIP_VOP2_EP_DP0>;
@@ -451,7 +452,6 @@ vp0_out_dsi1: endpoint@ROCKCHIP_VOP2_EP_DP0 {
 	};
 };
 
-/*
 &pwm1 {
 	status = "okay";
 };
@@ -459,4 +459,4 @@ &pwm1 {
 &pwm2 {
 	status = "okay";
 };
-*/
+#endif
-- 
2.47.3