#include #include #include #include static DEFINE_PER_CPU(struct hlist_head, return_notifier_list); /* * Request a notification when the current cpu returns to userspace. Must be * called in atomic context. The notifier will also be called in atomic * context. */ void user_return_notifier_register(struct user_return_notifier *urn) { set_tsk_thread_flag(current, TIF_USER_RETURN_NOTIFY); hlist_add_head(&urn->link, this_cpu_ptr(&return_notifier_list)); } EXPORT_SYMBOL_GPL(user_return_notifier_register); /* * Removes a registered user return notifier. Must be called from atomic * context, and from the same cpu registration occurred in. */ void user_return_notifier_unregister(struct user_return_notifier *urn) { hlist_del(&urn->link); if (hlist_empty(this_cpu_ptr(&return_notifier_list))) clear_tsk_thread_flag(current, TIF_USER_RETURN_NOTIFY); } EXPORT_SYMBOL_GPL(user_return_notifier_unregister); /* Calls registered user return notifiers */ void fire_user_return_notifiers(void) { struct user_return_notifier *urn; struct hlist_node *tmp2; struct hlist_head *head; head = &get_cpu_var(return_notifier_list); hlist_for_each_entry_safe(urn, tmp2, head, link) urn->on_user_return(urn); put_cpu_var(return_notifier_list); } ut type='submit' value='switch'/> net-next plumbingsTobias Klauser
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authorGiovanni Cabiddu <giovanni.cabiddu@intel.com>2016-12-22 15:00:12 +0000
committerHerbert Xu <herbert@gondor.apana.org.au>2017-02-02 21:54:52 +0800
commit3484ecbe0e9deb94afb0b9b6172d77e98eb72b94 (patch)
tree4d4be0d20d4946c51ef47a882d78c9934a219c0e /net/batman-adv/sysfs.c
parent11e3b725cfc282efe9d4a354153e99d86a16af08 (diff)
crypto: qat - fix bar discovery for c62x
Some accelerators of the c62x series have only two bars. This patch skips BAR0 if the accelerator does not have it. Cc: <stable@vger.kernel.org> Signed-off-by: Giovanni Cabiddu <giovanni.cabiddu@intel.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Diffstat (limited to 'net/batman-adv/sysfs.c')