From 15e473046cb6e5d18a4d0057e61d76315230382b Mon Sep 17 00:00:00 2001 From: "Eric W. Biederman" Date: Fri, 7 Sep 2012 20:12:54 +0000 Subject: netlink: Rename pid to portid to avoid confusion It is a frequent mistake to confuse the netlink port identifier with a process identifier. Try to reduce this confusion by renaming fields that hold port identifiers portid instead of pid. I have carefully avoided changing the structures exported to userspace to avoid changing the userspace API. I have successfully built an allyesconfig kernel with this change. Signed-off-by: "Eric W. Biederman" Acked-by: Stephen Hemminger Signed-off-by: David S. Miller --- drivers/net/team/team.c | 38 ++++++++++++++--------------- drivers/net/wireless/mac80211_hwsim.c | 46 +++++++++++++++++------------------ drivers/scsi/scsi_transport_iscsi.c | 4 +-- drivers/staging/gdm72xx/netlink_k.c | 2 +- 4 files changed, 45 insertions(+), 45 deletions(-) (limited to 'drivers') diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c index b4f67b55ef79..266af7b38ebc 100644 --- a/drivers/net/team/team.c +++ b/drivers/net/team/team.c @@ -1886,7 +1886,7 @@ static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) if (!msg) return -ENOMEM; - hdr = genlmsg_put(msg, info->snd_pid, info->snd_seq, + hdr = genlmsg_put(msg, info->snd_portid, info->snd_seq, &team_nl_family, 0, TEAM_CMD_NOOP); if (IS_ERR(hdr)) { err = PTR_ERR(hdr); @@ -1895,7 +1895,7 @@ static int team_nl_cmd_noop(struct sk_buff *skb, struct genl_info *info) genlmsg_end(msg, hdr); - return genlmsg_unicast(genl_info_net(info), msg, info->snd_pid); + return genlmsg_unicast(genl_info_net(info), msg, info->snd_portid); err_msg_put: nlmsg_free(msg); @@ -1952,7 +1952,7 @@ static int team_nl_send_generic(struct genl_info *info, struct team *team, if (err < 0) goto err_fill; - err = genlmsg_unicast(genl_info_net(info), skb, info->snd_pid); + err = genlmsg_unicast(genl_info_net(info), skb, info->snd_portid); return err; err_fill: @@ -1961,11 +1961,11 @@ err_fill: } typedef int team_nl_send_func_t(struct sk_buff *skb, - struct team *team, u32 pid); + struct team *team, u32 portid); -static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 pid) +static int team_nl_send_unicast(struct sk_buff *skb, struct team *team, u32 portid) { - return genlmsg_unicast(dev_net(team->dev), skb, pid); + return genlmsg_unicast(dev_net(team->dev), skb, portid); } static int team_nl_fill_one_option_get(struct sk_buff *skb, struct team *team, @@ -2050,13 +2050,13 @@ nest_cancel: } static int __send_and_alloc_skb(struct sk_buff **pskb, - struct team *team, u32 pid, + struct team *team, u32 portid, team_nl_send_func_t *send_func) { int err; if (*pskb) { - err = send_func(*pskb, team, pid); + err = send_func(*pskb, team, portid); if (err) return err; } @@ -2066,7 +2066,7 @@ static int __send_and_alloc_skb(struct sk_buff **pskb, return 0; } -static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq, +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) { @@ -2083,11 +2083,11 @@ static int team_nl_send_options_get(struct team *team, u32 pid, u32 seq, struct team_option_inst, tmp_list); start_again: - err = __send_and_alloc_skb(&skb, team, pid, send_func); + err = __send_and_alloc_skb(&skb, team, portid, send_func); if (err) return err; - hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags | NLM_F_MULTI, + hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags | NLM_F_MULTI, TEAM_CMD_OPTIONS_GET); if (IS_ERR(hdr)) return PTR_ERR(hdr); @@ -2120,15 +2120,15 @@ start_again: goto start_again; send_done: - nlh = nlmsg_put(skb, pid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); + nlh = nlmsg_put(skb, portid, seq, NLMSG_DONE, 0, flags | NLM_F_MULTI); if (!nlh) { - err = __send_and_alloc_skb(&skb, team, pid, send_func); + err = __send_and_alloc_skb(&skb, team, portid, send_func); if (err) goto errout; goto send_done; } - return send_func(skb, team, pid); + return send_func(skb, team, portid); nla_put_failure: err = -EMSGSIZE; @@ -2151,7 +2151,7 @@ static int team_nl_cmd_options_get(struct sk_buff *skb, struct genl_info *info) list_for_each_entry(opt_inst, &team->option_inst_list, list) list_add_tail(&opt_inst->tmp_list, &sel_opt_inst_list); - err = team_nl_send_options_get(team, info->snd_pid, info->snd_seq, + err = team_nl_send_options_get(team, info->snd_portid, info->snd_seq, NLM_F_ACK, team_nl_send_unicast, &sel_opt_inst_list); @@ -2305,7 +2305,7 @@ team_put: } static int team_nl_fill_port_list_get(struct sk_buff *skb, - u32 pid, u32 seq, int flags, + u32 portid, u32 seq, int flags, struct team *team, bool fillall) { @@ -2313,7 +2313,7 @@ static int team_nl_fill_port_list_get(struct sk_buff *skb, void *hdr; struct team_port *port; - hdr = genlmsg_put(skb, pid, seq, &team_nl_family, flags, + hdr = genlmsg_put(skb, portid, seq, &team_nl_family, flags, TEAM_CMD_PORT_LIST_GET); if (IS_ERR(hdr)) return PTR_ERR(hdr); @@ -2362,7 +2362,7 @@ static int team_nl_fill_port_list_get_all(struct sk_buff *skb, struct genl_info *info, int flags, struct team *team) { - return team_nl_fill_port_list_get(skb, info->snd_pid, + return team_nl_fill_port_list_get(skb, info->snd_portid, info->snd_seq, NLM_F_ACK, team, true); } @@ -2415,7 +2415,7 @@ static struct genl_multicast_group team_change_event_mcgrp = { }; static int team_nl_send_multicast(struct sk_buff *skb, - struct team *team, u32 pid) + struct team *team, u32 portid) { return genlmsg_multicast_netns(dev_net(team->dev), skb, 0, team_change_event_mcgrp.id, GFP_KERNEL); diff --git a/drivers/net/wireless/mac80211_hwsim.c b/drivers/net/wireless/mac80211_hwsim.c index 72b0456e41bf..9d45b3bb974c 100644 --- a/drivers/net/wireless/mac80211_hwsim.c +++ b/drivers/net/wireless/mac80211_hwsim.c @@ -38,7 +38,7 @@ MODULE_AUTHOR("Jouni Malinen"); MODULE_DESCRIPTION("Software simulator of 802.11 radio(s) for mac80211"); MODULE_LICENSE("GPL"); -static u32 wmediumd_pid; +static u32 wmediumd_portid; static int radios = 2; module_param(radios, int, 0444); @@ -545,7 +545,7 @@ static bool mac80211_hwsim_addr_match(struct mac80211_hwsim_data *data, static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, struct sk_buff *my_skb, - int dst_pid) + int dst_portid) { struct sk_buff *skb; struct mac80211_hwsim_data *data = hw->priv; @@ -619,7 +619,7 @@ static void mac80211_hwsim_tx_frame_nl(struct ieee80211_hw *hw, goto nla_put_failure; genlmsg_end(skb, msg_head); - genlmsg_unicast(&init_net, skb, dst_pid); + genlmsg_unicast(&init_net, skb, dst_portid); /* Enqueue the packet */ skb_queue_tail(&data->pending, my_skb); @@ -715,7 +715,7 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, { bool ack; struct ieee80211_tx_info *txi; - u32 _pid; + u32 _portid; mac80211_hwsim_monitor_rx(hw, skb); @@ -726,10 +726,10 @@ static void mac80211_hwsim_tx(struct ieee80211_hw *hw, } /* wmediumd mode check */ - _pid = ACCESS_ONCE(wmediumd_pid); + _portid = ACCESS_ONCE(wmediumd_portid); - if (_pid) - return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); + if (_portid) + return mac80211_hwsim_tx_frame_nl(hw, skb, _portid); /* NO wmediumd detected, perfect medium simulation */ ack = mac80211_hwsim_tx_frame_no_nl(hw, skb); @@ -814,7 +814,7 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, struct ieee80211_hw *hw = arg; struct sk_buff *skb; struct ieee80211_tx_info *info; - u32 _pid; + u32 _portid; hwsim_check_magic(vif); @@ -831,10 +831,10 @@ static void mac80211_hwsim_beacon_tx(void *arg, u8 *mac, mac80211_hwsim_monitor_rx(hw, skb); /* wmediumd mode check */ - _pid = ACCESS_ONCE(wmediumd_pid); + _portid = ACCESS_ONCE(wmediumd_portid); - if (_pid) - return mac80211_hwsim_tx_frame_nl(hw, skb, _pid); + if (_portid) + return mac80211_hwsim_tx_frame_nl(hw, skb, _portid); mac80211_hwsim_tx_frame_no_nl(hw, skb); dev_kfree_skb(skb); @@ -1315,7 +1315,7 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) struct hwsim_vif_priv *vp = (void *)vif->drv_priv; struct sk_buff *skb; struct ieee80211_pspoll *pspoll; - u32 _pid; + u32 _portid; if (!vp->assoc) return; @@ -1336,10 +1336,10 @@ static void hwsim_send_ps_poll(void *dat, u8 *mac, struct ieee80211_vif *vif) memcpy(pspoll->ta, mac, ETH_ALEN); /* wmediumd mode check */ - _pid = ACCESS_ONCE(wmediumd_pid); + _portid = ACCESS_ONCE(wmediumd_portid); - if (_pid) - return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); + if (_portid) + return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid); if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb)) printk(KERN_DEBUG "%s: PS-poll frame not ack'ed\n", __func__); @@ -1353,7 +1353,7 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, struct hwsim_vif_priv *vp = (void *)vif->drv_priv; struct sk_buff *skb; struct ieee80211_hdr *hdr; - u32 _pid; + u32 _portid; if (!vp->assoc) return; @@ -1375,10 +1375,10 @@ static void hwsim_send_nullfunc(struct mac80211_hwsim_data *data, u8 *mac, memcpy(hdr->addr3, vp->bssid, ETH_ALEN); /* wmediumd mode check */ - _pid = ACCESS_ONCE(wmediumd_pid); + _portid = ACCESS_ONCE(wmediumd_portid); - if (_pid) - return mac80211_hwsim_tx_frame_nl(data->hw, skb, _pid); + if (_portid) + return mac80211_hwsim_tx_frame_nl(data->hw, skb, _portid); if (!mac80211_hwsim_tx_frame_no_nl(data->hw, skb)) printk(KERN_DEBUG "%s: nullfunc frame not ack'ed\n", __func__); @@ -1632,10 +1632,10 @@ static int hwsim_register_received_nl(struct sk_buff *skb_2, if (info == NULL) goto out; - wmediumd_pid = info->snd_pid; + wmediumd_portid = info->snd_portid; printk(KERN_DEBUG "mac80211_hwsim: received a REGISTER, " - "switching to wmediumd mode with pid %d\n", info->snd_pid); + "switching to wmediumd mode with pid %d\n", info->snd_portid); return 0; out: @@ -1672,10 +1672,10 @@ static int mac80211_hwsim_netlink_notify(struct notifier_block *nb, if (state != NETLINK_URELEASE) return NOTIFY_DONE; - if (notify->pid == wmediumd_pid) { + if (notify->portid == wmediumd_portid) { printk(KERN_INFO "mac80211_hwsim: wmediumd released netlink" " socket, switching to perfect channel medium\n"); - wmediumd_pid = 0; + wmediumd_portid = 0; } return NOTIFY_DONE; diff --git a/drivers/scsi/scsi_transport_iscsi.c b/drivers/scsi/scsi_transport_iscsi.c index 519bd5303f3f..31969f2e13ce 100644 --- a/drivers/scsi/scsi_transport_iscsi.c +++ b/drivers/scsi/scsi_transport_iscsi.c @@ -2119,7 +2119,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) switch (nlh->nlmsg_type) { case ISCSI_UEVENT_CREATE_SESSION: err = iscsi_if_create_session(priv, ep, ev, - NETLINK_CB(skb).pid, + NETLINK_CB(skb).portid, ev->u.c_session.initial_cmdsn, ev->u.c_session.cmds_max, ev->u.c_session.queue_depth); @@ -2132,7 +2132,7 @@ iscsi_if_recv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, uint32_t *group) } err = iscsi_if_create_session(priv, ep, ev, - NETLINK_CB(skb).pid, + NETLINK_CB(skb).portid, ev->u.c_bound_session.initial_cmdsn, ev->u.c_bound_session.cmds_max, ev->u.c_bound_session.queue_depth); diff --git a/drivers/staging/gdm72xx/netlink_k.c b/drivers/staging/gdm72xx/netlink_k.c index 2109cab0a14c..20d0aec52e72 100644 --- a/drivers/staging/gdm72xx/netlink_k.c +++ b/drivers/staging/gdm72xx/netlink_k.c @@ -135,7 +135,7 @@ int netlink_send(struct sock *sock, int group, u16 type, void *msg, int len) } memcpy(nlmsg_data(nlh), msg, len); - NETLINK_CB(skb).pid = 0; + NETLINK_CB(skb).portid = 0; NETLINK_CB(skb).dst_group = 0; ret = netlink_broadcast(sock, skb, 0, group+1, GFP_ATOMIC); -- cgit v1.2.3-59-g8ed1b