Date: Fri, 1 Jul 2022 14:57:48 GMT From: "Bjoern A. Zeeb" <bz@FreeBSD.org> To: src-committers@FreeBSD.org, dev-commits-src-all@FreeBSD.org, dev-commits-src-branches@FreeBSD.org Subject: git: 2217448bcc2f - stable/13 - LinuxKPI: 802.11: cleanup lsta better Message-ID: <202207011457.261EvmnO057994@gitrepo.freebsd.org>
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The branch stable/13 has been updated by bz: URL: https://cgit.FreeBSD.org/src/commit/?id=2217448bcc2f8e8d5f5c20ab0b1be4511bf5fd01 commit 2217448bcc2f8e8d5f5c20ab0b1be4511bf5fd01 Author: Bjoern A. Zeeb <bz@FreeBSD.org> AuthorDate: 2022-06-26 19:13:00 +0000 Commit: Bjoern A. Zeeb <bz@FreeBSD.org> CommitDate: 2022-07-01 13:50:03 +0000 LinuxKPI: 802.11: cleanup lsta better This changes cleans up lsta from the VIF station list as well as deals with freeing the lsta itself so it is not leaked. lkpi_iv_update_bss() makes this more complicated than it should be as we ties more sta state (incl. drv/fw) to the node that net80211 does not know about. There is more work to be done detangling this now that is better understood. (cherry picked from commit e24e8103e0e2140751a1b2baf7b68725ca20aaa2) --- sys/compat/linuxkpi/common/src/linux_80211.c | 29 ++++++++++++++-------------- 1 file changed, 14 insertions(+), 15 deletions(-) diff --git a/sys/compat/linuxkpi/common/src/linux_80211.c b/sys/compat/linuxkpi/common/src/linux_80211.c index 728f732e5a75..522e3c92906f 100644 --- a/sys/compat/linuxkpi/common/src/linux_80211.c +++ b/sys/compat/linuxkpi/common/src/linux_80211.c @@ -179,9 +179,12 @@ lkpi_lsta_remove(struct lkpi_sta *lsta, struct lkpi_vif *lvif) lsta->ni = NULL; ni->ni_drv_data = NULL; - ieee80211_free_node(ni); + if (ni != NULL) + ieee80211_free_node(ni); + + IMPROVE("more from lkpi_ic_node_free() should happen here."); - IMPROVE("free lsta here? We won't have a pointer to it from the node anymore."); + free(lsta, M_LKPI80211); } static struct lkpi_sta * @@ -998,12 +1001,15 @@ lkpi_sta_scan_to_auth(struct ieee80211vap *vap, enum ieee80211_state nstate, int goto out; } lsta->ni = ieee80211_ref_node(ni); - LKPI_80211_LVIF_LOCK(lvif); - TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); - LKPI_80211_LVIF_UNLOCK(lvif); } else { lsta = ni->ni_drv_data; } + + /* Insert the [l]sta into the list of known stations. */ + LKPI_80211_LVIF_LOCK(lvif); + TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); + LKPI_80211_LVIF_UNLOCK(lvif); + /* Add (or adjust) sta and change state (from NOTEXIST) to NONE. */ KASSERT(lsta != NULL, ("%s: ni %p lsta is NULL\n", __func__, ni)); KASSERT(lsta->state == IEEE80211_STA_NOTEXIST, ("%s: lsta %p state not " @@ -2775,7 +2781,6 @@ lkpi_ic_node_init(struct ieee80211_node *ni) struct ieee80211com *ic; struct lkpi_hw *lhw; struct lkpi_sta *lsta; - struct lkpi_vif *lvif; int error; ic = ni->ni_ic; @@ -2787,17 +2792,11 @@ lkpi_ic_node_init(struct ieee80211_node *ni) return (error); } - lvif = VAP_TO_LVIF(ni->ni_vap); - lsta = ni->ni_drv_data; /* Now take the reference before linking it to the table. */ lsta->ni = ieee80211_ref_node(ni); - LKPI_80211_LVIF_LOCK(lvif); - TAILQ_INSERT_TAIL(&lvif->lsta_head, lsta, lsta_entry); - LKPI_80211_LVIF_UNLOCK(lvif); - /* XXX-BZ Sync other state over. */ IMPROVE(); @@ -2847,11 +2846,11 @@ lkpi_ic_node_free(struct ieee80211_node *ni) mtx_destroy(&lsta->txq_mtx); /* Remove lsta if added_to_drv. */ - /* Remove lsta from vif */ - - /* remove ref from lsta node... */ + /* Remove lsta from vif */ + /* Remove ref from lsta node... */ /* Free lsta. */ + lkpi_lsta_remove(lsta, VAP_TO_LVIF(ni->ni_vap)); out: if (lhw->ic_node_free != NULL)
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