net: sched: add extack support for offload via tc_cls_common_offload

Add extack support for hardware offload of classifiers. In order
to achieve this, a pointer to a struct netlink_ext_ack is added to the
struct tc_cls_common_offload that is passed to the callback for setting
up the classifier. Function tc_cls_common_offload_init() is updated to
support initialization of this new attribute.

Signed-off-by: Quentin Monnet <quentin.monnet@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

4 files changed, 11 insertions, 11 deletions

diff --git a/net/sched/cls_bpf.c b/net/sched/cls_bpf.c
index cd4194b1d5e4..c11e0fe23a17 100644
--- a/net/sched/cls_bpf.c
+++ b/net/sched/cls_bpf.c
@@ -159,7 +159,7 @@ static int cls_bpf_offload_cmd(struct tcf_proto *tp, struct cls_bpf_prog *prog,
 	skip_sw = prog && tc_skip_sw(prog->gen_flags);
 	obj = prog ?: oldprog;
 
-	tc_cls_common_offload_init(&cls_bpf.common, tp);
+	tc_cls_common_offload_init(&cls_bpf.common, tp, extack);
 	cls_bpf.command = TC_CLSBPF_OFFLOAD;
 	cls_bpf.exts = &obj->exts;
 	cls_bpf.prog = prog ? prog->filter : NULL;
@@ -227,7 +227,7 @@ static void cls_bpf_offload_update_stats(struct tcf_proto *tp,
 	struct tcf_block *block = tp->chain->block;
 	struct tc_cls_bpf_offload cls_bpf = {};
 
-	tc_cls_common_offload_init(&cls_bpf.common, tp);
+	tc_cls_common_offload_init(&cls_bpf.common, tp, NULL);
 	cls_bpf.command = TC_CLSBPF_STATS;
 	cls_bpf.exts = &prog->exts;
 	cls_bpf.prog = prog->filter;
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index f675a92e1b66..727c10378f37 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -223,7 +223,7 @@ static void fl_hw_destroy_filter(struct tcf_proto *tp, struct cls_fl_filter *f)
 	struct tc_cls_flower_offload cls_flower = {};
 	struct tcf_block *block = tp->chain->block;
 
-	tc_cls_common_offload_init(&cls_flower.common, tp);
+	tc_cls_common_offload_init(&cls_flower.common, tp, NULL);
 	cls_flower.command = TC_CLSFLOWER_DESTROY;
 	cls_flower.cookie = (unsigned long) f;
 
@@ -243,7 +243,7 @@ static int fl_hw_replace_filter(struct tcf_proto *tp,
 	bool skip_sw = tc_skip_sw(f->flags);
 	int err;
 
-	tc_cls_common_offload_init(&cls_flower.common, tp);
+	tc_cls_common_offload_init(&cls_flower.common, tp, extack);
 	cls_flower.command = TC_CLSFLOWER_REPLACE;
 	cls_flower.cookie = (unsigned long) f;
 	cls_flower.dissector = dissector;
@@ -272,7 +272,7 @@ static void fl_hw_update_stats(struct tcf_proto *tp, struct cls_fl_filter *f)
 	struct tc_cls_flower_offload cls_flower = {};
 	struct tcf_block *block = tp->chain->block;
 
-	tc_cls_common_offload_init(&cls_flower.common, tp);
+	tc_cls_common_offload_init(&cls_flower.common, tp, NULL);
 	cls_flower.command = TC_CLSFLOWER_STATS;
 	cls_flower.cookie = (unsigned long) f;
 	cls_flower.exts = &f->exts;
diff --git a/net/sched/cls_matchall.c b/net/sched/cls_matchall.c
index b47929c15792..d990d2a52c6d 100644
--- a/net/sched/cls_matchall.c
+++ b/net/sched/cls_matchall.c
@@ -76,7 +76,7 @@ static void mall_destroy_hw_filter(struct tcf_proto *tp,
 	struct tc_cls_matchall_offload cls_mall = {};
 	struct tcf_block *block = tp->chain->block;
 
-	tc_cls_common_offload_init(&cls_mall.common, tp);
+	tc_cls_common_offload_init(&cls_mall.common, tp, NULL);
 	cls_mall.command = TC_CLSMATCHALL_DESTROY;
 	cls_mall.cookie = cookie;
 
@@ -94,7 +94,7 @@ static int mall_replace_hw_filter(struct tcf_proto *tp,
 	bool skip_sw = tc_skip_sw(head->flags);
 	int err;
 
-	tc_cls_common_offload_init(&cls_mall.common, tp);
+	tc_cls_common_offload_init(&cls_mall.common, tp, extack);
 	cls_mall.command = TC_CLSMATCHALL_REPLACE;
 	cls_mall.exts = &head->exts;
 	cls_mall.cookie = cookie;
diff --git a/net/sched/cls_u32.c b/net/sched/cls_u32.c
index 0206c210e25b..7030240f8826 100644
--- a/net/sched/cls_u32.c
+++ b/net/sched/cls_u32.c
@@ -491,7 +491,7 @@ static void u32_clear_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h)
 	struct tcf_block *block = tp->chain->block;
 	struct tc_cls_u32_offload cls_u32 = {};
 
-	tc_cls_common_offload_init(&cls_u32.common, tp);
+	tc_cls_common_offload_init(&cls_u32.common, tp, NULL);
 	cls_u32.command = TC_CLSU32_DELETE_HNODE;
 	cls_u32.hnode.divisor = h->divisor;
 	cls_u32.hnode.handle = h->handle;
@@ -509,7 +509,7 @@ static int u32_replace_hw_hnode(struct tcf_proto *tp, struct tc_u_hnode *h,
 	bool offloaded = false;
 	int err;
 
-	tc_cls_common_offload_init(&cls_u32.common, tp);
+	tc_cls_common_offload_init(&cls_u32.common, tp, extack);
 	cls_u32.command = TC_CLSU32_NEW_HNODE;
 	cls_u32.hnode.divisor = h->divisor;
 	cls_u32.hnode.handle = h->handle;
@@ -534,7 +534,7 @@ static void u32_remove_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n)
 	struct tcf_block *block = tp->chain->block;
 	struct tc_cls_u32_offload cls_u32 = {};
 
-	tc_cls_common_offload_init(&cls_u32.common, tp);
+	tc_cls_common_offload_init(&cls_u32.common, tp, NULL);
 	cls_u32.command = TC_CLSU32_DELETE_KNODE;
 	cls_u32.knode.handle = n->handle;
 
@@ -550,7 +550,7 @@ static int u32_replace_hw_knode(struct tcf_proto *tp, struct tc_u_knode *n,
 	bool skip_sw = tc_skip_sw(flags);
 	int err;
 
-	tc_cls_common_offload_init(&cls_u32.common, tp);
+	tc_cls_common_offload_init(&cls_u32.common, tp, extack);
 	cls_u32.command = TC_CLSU32_REPLACE_KNODE;
 	cls_u32.knode.handle = n->handle;
 	cls_u32.knode.fshift = n->fshift;