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kernel: update flow offload fix based on upstream suggestions

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Signed-off-by: Felix Fietkau <nbd@nbd.name>
This commit is contained in:
Felix Fietkau 2023-03-23 10:08:51 +01:00
parent f7c1631155
commit 07b550890c
1 changed files with 6 additions and 34 deletions
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40
target/linux/generic/pending-5.15/735-net-ethernet-mtk_eth_soc-fix-flow_offload-related-re.patch
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@ -14,43 +14,15 @@ Signed-off-by: Felix Fietkau <nbd@nbd.name>
--- a/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
+++ b/drivers/net/ethernet/mediatek/mtk_ppe_offload.c
@@ -561,6 +561,7 @@ mtk_eth_setup_tc_block(struct net_device
struct mtk_eth *eth = mac->hw;
static LIST_HEAD(block_cb_list);
struct flow_block_cb *block_cb;
+ bool register_block = false;
flow_setup_cb_t *cb;
@@ -583,6 +583,7 @@ mtk_eth_setup_tc_block(struct net_device
if (IS_ERR(block_cb))
return PTR_ERR(block_cb);
if (!eth->soc->offload_version)
@@ -575,23 +576,27 @@ mtk_eth_setup_tc_block(struct net_device
switch (f->command) {
case FLOW_BLOCK_BIND:
block_cb = flow_block_cb_lookup(f->block, cb, dev);
- if (block_cb) {
- flow_block_cb_incref(block_cb);
- return 0;
+ if (!block_cb) {
+ block_cb = flow_block_cb_alloc(cb, dev, dev, NULL);
+ if (IS_ERR(block_cb))
+ return PTR_ERR(block_cb);
+
+ register_block = true;
}
- block_cb = flow_block_cb_alloc(cb, dev, dev, NULL);
- if (IS_ERR(block_cb))
- return PTR_ERR(block_cb);
- flow_block_cb_add(block_cb, f);
- list_add_tail(&block_cb->driver_list, &block_cb_list);
+ flow_block_cb_incref(block_cb);
+
+ if (register_block) {
+ flow_block_cb_add(block_cb, f);
+ list_add_tail(&block_cb->driver_list, &block_cb_list);
+ }
flow_block_cb_add(block_cb, f);
list_add_tail(&block_cb->driver_list, &block_cb_list);
return 0;
case FLOW_BLOCK_UNBIND:
block_cb = flow_block_cb_lookup(f->block, cb, dev);
@@ -591,7 +592,7 @@ mtk_eth_setup_tc_block(struct net_device
if (!block_cb)
return -ENOENT;