This is a note to let you know that I've just added the patch titled
net: thunderx: acpi: fix LMAC initialization
to the 4.9-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-thunderx-acpi-fix-lmac-initialization.patch
and it can be found in the queue-4.9 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From foo@baz Mon Jul 3 13:29:10 CEST 2017
From: Vadim Lomovtsev <Vadim.Lomovtsev@xxxxxxxxxxxxxxxxxx>
Date: Thu, 12 Jan 2017 07:28:06 -0800
Subject: net: thunderx: acpi: fix LMAC initialization
From: Vadim Lomovtsev <Vadim.Lomovtsev@xxxxxxxxxxxxxxxxxx>
[ Upstream commit 7aa4865506a26c607e00bd9794a85785b55ebca7 ]
While probing BGX we requesting appropriate QLM for it's configuration
and get LMAC count by that request. Then, while reading configured
MAC values from SSDT table we need to save them in proper mapping:
BGX[i]->lmac[j].mac = <MAC value>
to later provide for initialization stuff. In order to fill
such mapping properly we need to add lmac index to be used while
acpi initialization since at this moment bgx->lmac_count already contains
actual value.
Signed-off-by: Vadim Lomovtsev <Vadim.Lomovtsev@xxxxxxxxxxxxxxxxxx>
Signed-off-by: David S. Miller <davem@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <alexander.levin@xxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/net/ethernet/cavium/thunder/thunder_bgx.c | 11 ++++++-----
1 file changed, 6 insertions(+), 5 deletions(-)
--- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
+++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.c
@@ -48,8 +48,9 @@ struct lmac {
struct bgx {
u8 bgx_id;
struct lmac lmac[MAX_LMAC_PER_BGX];
- int lmac_count;
+ u8 lmac_count;
u8 max_lmac;
+ u8 acpi_lmac_idx;
void __iomem *reg_base;
struct pci_dev *pdev;
bool is_dlm;
@@ -1159,13 +1160,13 @@ static acpi_status bgx_acpi_register_phy
if (acpi_bus_get_device(handle, &adev))
goto out;
- acpi_get_mac_address(dev, adev, bgx->lmac[bgx->lmac_count].mac);
+ acpi_get_mac_address(dev, adev, bgx->lmac[bgx->acpi_lmac_idx].mac);
- SET_NETDEV_DEV(&bgx->lmac[bgx->lmac_count].netdev, dev);
+ SET_NETDEV_DEV(&bgx->lmac[bgx->acpi_lmac_idx].netdev, dev);
- bgx->lmac[bgx->lmac_count].lmacid = bgx->lmac_count;
+ bgx->lmac[bgx->acpi_lmac_idx].lmacid = bgx->acpi_lmac_idx;
+ bgx->acpi_lmac_idx++; /* move to next LMAC */
out:
- bgx->lmac_count++;
return AE_OK;
}
Patches currently in stable-queue which might be from Vadim.Lomovtsev@xxxxxxxxxxxxxxxxxx are
queue-4.9/net-thunderx-acpi-fix-lmac-initialization.patch