diff options
| author | Davide Caratti <dcaratti@redhat.com> | 2022-07-18 10:55:12 +0200 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-07-19 17:14:55 -0700 |
| commit | ca0cab11928870701535fbc3e49a4b196f722743 (patch) | |
| tree | 2832246f645b6d0ba57857450cdf1f907794f195 /include/net/sch_generic.h | |
| parent | 7f9eee196ec83fe57ad9a53f413d4246d2748e9a (diff) | |
net/sched: remove qdisc_root_lock() helper
the last caller has been removed with commit 96f5e66e8a79 ("mac80211: fix
aggregation for hardware with ampdu queues"), so it's safe to remove this
function.
Signed-off-by: Davide Caratti <dcaratti@redhat.com>
Link: https://lore.kernel.org/r/703d549e3088367651d92a059743f1be848d74b7.1658133689.git.dcaratti@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'include/net/sch_generic.h')
| -rw-r--r-- | include/net/sch_generic.h | 19 |
1 files changed, 0 insertions, 19 deletions
diff --git a/include/net/sch_generic.h b/include/net/sch_generic.h index d6cf5116b5f9..ec693fe7c553 100644 --- a/include/net/sch_generic.h +++ b/include/net/sch_generic.h @@ -551,25 +551,6 @@ static inline struct Qdisc *qdisc_root_sleeping(const struct Qdisc *qdisc) return qdisc->dev_queue->qdisc_sleeping; } -/* The qdisc root lock is a mechanism by which to top level - * of a qdisc tree can be locked from any qdisc node in the - * forest. This allows changing the configuration of some - * aspect of the qdisc tree while blocking out asynchronous - * qdisc access in the packet processing paths. - * - * It is only legal to do this when the root will not change - * on us. Otherwise we'll potentially lock the wrong qdisc - * root. This is enforced by holding the RTNL semaphore, which - * all users of this lock accessor must do. - */ -static inline spinlock_t *qdisc_root_lock(const struct Qdisc *qdisc) -{ - struct Qdisc *root = qdisc_root(qdisc); - - ASSERT_RTNL(); - return qdisc_lock(root); -} - static inline spinlock_t *qdisc_root_sleeping_lock(const struct Qdisc *qdisc) { struct Qdisc *root = qdisc_root_sleeping(qdisc); |