In preparation to limit the scope of the list iterator variable to the list traversal loop, use a dedicated pointer to iterate through the list [1]. Since that variable should not be used past the loop iteration, a separate variable is used to 'remember the current location within the loop'. To either continue iterating from that position or skip the iteration (if the previous iteration was complete) list_prepare_entry() is used. Link: https://lore.kernel.org/all/CAHk-=wgRr_D8CB-D9Kg-c=EHreAsk5SqXPwr9Y7k9sA6cWXJ6w@xxxxxxxxxxxxxx/ [1] Signed-off-by: Jakob Koschel <jakobkoschel@xxxxxxxxx> --- drivers/net/team/team.c | 20 +++++++++++++------- 1 file changed, 13 insertions(+), 7 deletions(-) diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index b07dde6f0abf..688c4393f099 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -2425,17 +2425,17 @@ static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, int flags, team_nl_send_func_t *send_func, struct list_head *sel_opt_inst_list) { + struct team_option_inst *opt_inst, *tmp = NULL; struct nlattr *option_list; struct nlmsghdr *nlh; void *hdr; - struct team_option_inst *opt_inst; int err; struct sk_buff *skb = NULL; bool incomplete; int i; - opt_inst = list_first_entry(sel_opt_inst_list, - struct team_option_inst, tmp_list); + tmp = list_first_entry(sel_opt_inst_list, + struct team_option_inst, tmp_list); start_again: err = __send_and_alloc_skb(&skb, team, portid, send_func); @@ -2456,7 +2456,9 @@ static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, goto nla_put_failure; i = 0; + opt_inst = list_prepare_entry(tmp, sel_opt_inst_list, tmp_list); incomplete = false; + tmp = NULL; list_for_each_entry_from(opt_inst, sel_opt_inst_list, tmp_list) { err = team_nl_fill_one_option_get(skb, team, opt_inst); if (err) { @@ -2464,6 +2466,7 @@ static int team_nl_send_options_get(struct team *team, u32 portid, u32 seq, if (!i) goto errout; incomplete = true; + tmp = opt_inst; break; } goto errout; @@ -2707,14 +2710,14 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, struct nlattr *port_list; struct nlmsghdr *nlh; void *hdr; - struct team_port *port; + struct team_port *port, *tmp = NULL; int err; struct sk_buff *skb = NULL; bool incomplete; int i; - port = list_first_entry_or_null(&team->port_list, - struct team_port, list); + tmp = list_first_entry_or_null(&team->port_list, + struct team_port, list); start_again: err = __send_and_alloc_skb(&skb, team, portid, send_func); @@ -2744,7 +2747,9 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, err = team_nl_fill_one_port_get(skb, one_port); if (err) goto errout; - } else if (port) { + } else { + port = list_prepare_entry(tmp, &team->port_list, list); + tmp = NULL; list_for_each_entry_from(port, &team->port_list, list) { err = team_nl_fill_one_port_get(skb, port); if (err) { @@ -2752,6 +2757,7 @@ static int team_nl_send_port_list_get(struct team *team, u32 portid, u32 seq, if (!i) goto errout; incomplete = true; + tmp = port; break; } goto errout; -- 2.25.1
