* [PATCH AUTOSEL 6.1 19/38] net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC
[not found] <20230209111459.1891941-1-sashal@kernel.org>
@ 2023-02-09 11:14 ` Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 23/38] net: ethernet: mtk_eth_soc: Avoid truncating allocation Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Andrey Konovalov, David S . Miller, Sasha Levin, vkoul,
peppe.cavallaro, alexandre.torgue, joabreu, edumazet, kuba,
pabeni, mcoquelin.stm32, veekhee, tee.min.tan, ruppala, jonathanh,
netdev, linux-stm32, linux-arm-kernel
From: Andrey Konovalov <andrey.konovalov@linaro.org>
[ Upstream commit 54aa39a513dbf2164ca462a19f04519b2407a224 ]
Currently in phy_init_eee() the driver unconditionally configures the PHY
to stop RX_CLK after entering Rx LPI state. This causes an LPI interrupt
storm on my qcs404-base board.
Change the PHY initialization so that for "qcom,qcs404-ethqos" compatible
device RX_CLK continues to run even in Rx LPI state.
Signed-off-by: Andrey Konovalov <andrey.konovalov@linaro.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c | 2 ++
drivers/net/ethernet/stmicro/stmmac/stmmac_main.c | 3 ++-
include/linux/stmmac.h | 1 +
3 files changed, 5 insertions(+), 1 deletion(-)
diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
index 835caa15d55ff..732774645c1a6 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac-qcom-ethqos.c
@@ -560,6 +560,8 @@ static int qcom_ethqos_probe(struct platform_device *pdev)
plat_dat->has_gmac4 = 1;
plat_dat->pmt = 1;
plat_dat->tso_en = of_property_read_bool(np, "snps,tso");
+ if (of_device_is_compatible(np, "qcom,qcs404-ethqos"))
+ plat_dat->rx_clk_runs_in_lpi = 1;
ret = stmmac_dvr_probe(&pdev->dev, plat_dat, &stmmac_res);
if (ret)
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
index 4bba0444c764a..84e1740b12f1b 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_main.c
@@ -1077,7 +1077,8 @@ static void stmmac_mac_link_up(struct phylink_config *config,
stmmac_mac_set(priv, priv->ioaddr, true);
if (phy && priv->dma_cap.eee) {
- priv->eee_active = phy_init_eee(phy, 1) >= 0;
+ priv->eee_active =
+ phy_init_eee(phy, !priv->plat->rx_clk_runs_in_lpi) >= 0;
priv->eee_enabled = stmmac_eee_init(priv);
priv->tx_lpi_enabled = priv->eee_enabled;
stmmac_set_eee_pls(priv, priv->hw, true);
diff --git a/include/linux/stmmac.h b/include/linux/stmmac.h
index fb2e88614f5d1..313edd19bf545 100644
--- a/include/linux/stmmac.h
+++ b/include/linux/stmmac.h
@@ -252,6 +252,7 @@ struct plat_stmmacenet_data {
int rss_en;
int mac_port_sel_speed;
bool en_tx_lpi_clockgating;
+ bool rx_clk_runs_in_lpi;
int has_xgmac;
bool vlan_fail_q_en;
u8 vlan_fail_q;
--
2.39.0
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^ permalink raw reply related [flat|nested] 2+ messages in thread
* [PATCH AUTOSEL 6.1 23/38] net: ethernet: mtk_eth_soc: Avoid truncating allocation
[not found] <20230209111459.1891941-1-sashal@kernel.org>
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 19/38] net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC Sasha Levin
@ 2023-02-09 11:14 ` Sasha Levin
1 sibling, 0 replies; 2+ messages in thread
From: Sasha Levin @ 2023-02-09 11:14 UTC (permalink / raw)
To: linux-kernel, stable
Cc: Kees Cook, Felix Fietkau, John Crispin, Sean Wang, Mark Lee,
Lorenzo Bianconi, David S. Miller, Eric Dumazet, Jakub Kicinski,
Paolo Abeni, Matthias Brugger, netdev, linux-arm-kernel,
linux-mediatek, Simon Horman, Sasha Levin
From: Kees Cook <keescook@chromium.org>
[ Upstream commit f3eceaed9edd7c0e0d9fb057613131f92973626f ]
There doesn't appear to be a reason to truncate the allocation used for
flow_info, so do a full allocation and remove the unused empty struct.
GCC does not like having a reference to an object that has been
partially allocated, as bounds checking may become impossible when
such an object is passed to other code. Seen with GCC 13:
../drivers/net/ethernet/mediatek/mtk_ppe.c: In function 'mtk_foe_entry_commit_subflow':
../drivers/net/ethernet/mediatek/mtk_ppe.c:623:18: warning: array subscript 'struct mtk_flow_entry[0]' is partly outside array bounds of 'unsigned char[48]' [-Warray-bounds=]
623 | flow_info->l2_data.base_flow = entry;
| ^~
Cc: Felix Fietkau <nbd@nbd.name>
Cc: John Crispin <john@phrozen.org>
Cc: Sean Wang <sean.wang@mediatek.com>
Cc: Mark Lee <Mark-MC.Lee@mediatek.com>
Cc: Lorenzo Bianconi <lorenzo@kernel.org>
Cc: "David S. Miller" <davem@davemloft.net>
Cc: Eric Dumazet <edumazet@google.com>
Cc: Jakub Kicinski <kuba@kernel.org>
Cc: Paolo Abeni <pabeni@redhat.com>
Cc: Matthias Brugger <matthias.bgg@gmail.com>
Cc: netdev@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Kees Cook <keescook@chromium.org>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230127223853.never.014-kees@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
drivers/net/ethernet/mediatek/mtk_ppe.c | 3 +--
drivers/net/ethernet/mediatek/mtk_ppe.h | 1 -
2 files changed, 1 insertion(+), 3 deletions(-)
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.c b/drivers/net/ethernet/mediatek/mtk_ppe.c
index 784ecb2dc9fbd..34ea8af48c3d0 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.c
@@ -595,8 +595,7 @@ mtk_foe_entry_commit_subflow(struct mtk_ppe *ppe, struct mtk_flow_entry *entry,
u32 ib1_mask = mtk_get_ib1_pkt_type_mask(ppe->eth) | MTK_FOE_IB1_UDP;
int type;
- flow_info = kzalloc(offsetof(struct mtk_flow_entry, l2_data.end),
- GFP_ATOMIC);
+ flow_info = kzalloc(sizeof(*flow_info), GFP_ATOMIC);
if (!flow_info)
return;
diff --git a/drivers/net/ethernet/mediatek/mtk_ppe.h b/drivers/net/ethernet/mediatek/mtk_ppe.h
index a09c32539bcc9..e66283b1bc79e 100644
--- a/drivers/net/ethernet/mediatek/mtk_ppe.h
+++ b/drivers/net/ethernet/mediatek/mtk_ppe.h
@@ -277,7 +277,6 @@ struct mtk_flow_entry {
struct {
struct mtk_flow_entry *base_flow;
struct hlist_node list;
- struct {} end;
} l2_data;
};
struct rhash_head node;
--
2.39.0
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2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 19/38] net: stmmac: do not stop RX_CLK in Rx LPI state for qcs404 SoC Sasha Levin
2023-02-09 11:14 ` [PATCH AUTOSEL 6.1 23/38] net: ethernet: mtk_eth_soc: Avoid truncating allocation Sasha Levin
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