This is a note to let you know that I've just added the patch titled
net: dsa: felix: fix internal MDIO controller resource length
to the 6.2-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:
net-dsa-felix-fix-internal-mdio-controller-resource-.patch
and it can be found in the queue-6.2 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit d86ec82152c026dd3ddb768f49201bb6d680bb2a
Author: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Date: Fri Feb 24 17:52:34 2023 +0200
net: dsa: felix: fix internal MDIO controller resource length
[ Upstream commit 940af261321307cd1dd0fe8f9c34a6129f9d4bdc ]
The blamed commit did not properly convert the resource start/end format
into the DEFINE_RES_MEM_NAMED() start/length format, resulting in a
resource for vsc9959_imdio_res which is much longer than expected:
$ cat /proc/iomem
1f8000000-1f815ffff : pcie@1f0000000
1f8140000-1f815ffff : 0000:00:00.5
1f8148030-1f815006f : imdio
vs (correct)
$ cat /proc/iomem
1f8000000-1f815ffff : pcie@1f0000000
1f8140000-1f815ffff : 0000:00:00.5
1f8148030-1f814803f : imdio
Luckily it's not big enough to exceed the size of the parent resource
(pci_resource_end(pdev, VSC9959_IMDIO_PCI_BAR)), and it doesn't overlap
with anything else that the Linux driver uses currently, so the larger
than expected size isn't a practical problem that I can see. Although it
is clearly wrong in the /proc/iomem output.
Fixes: 044d447a801f ("net: dsa: felix: use DEFINE_RES_MEM_NAMED for resources")
Signed-off-by: Vladimir Oltean <vladimir.oltean@xxxxxxx>
Reviewed-by: Florian Fainelli <f.fainelli@xxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/dsa/ocelot/felix_vsc9959.c b/drivers/net/dsa/ocelot/felix_vsc9959.c
index 01ac70fd7ddf1..4b6e4e5b47283 100644
--- a/drivers/net/dsa/ocelot/felix_vsc9959.c
+++ b/drivers/net/dsa/ocelot/felix_vsc9959.c
@@ -513,7 +513,7 @@ static const char * const vsc9959_resource_names[TARGET_MAX] = {
* SGMII/QSGMII MAC PCS can be found.
*/
static const struct resource vsc9959_imdio_res =
- DEFINE_RES_MEM_NAMED(0x8030, 0x8040, "imdio");
+ DEFINE_RES_MEM_NAMED(0x8030, 0x10, "imdio");
static const struct reg_field vsc9959_regfields[REGFIELD_MAX] = {
[ANA_ADVLEARN_VLAN_CHK] = REG_FIELD(ANA_ADVLEARN, 6, 6),
