mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2026-03-22 07:27:12 +08:00
bf4afc53b7
This was done entirely with mindless brute force, using
git grep -l '\<k[vmz]*alloc_objs*(.*, GFP_KERNEL)' |
xargs sed -i 's/\(alloc_objs*(.*\), GFP_KERNEL)/\1)/'
to convert the new alloc_obj() users that had a simple GFP_KERNEL
argument to just drop that argument.
Note that due to the extreme simplicity of the scripting, any slightly
more complex cases spread over multiple lines would not be triggered:
they definitely exist, but this covers the vast bulk of the cases, and
the resulting diff is also then easier to check automatically.
For the same reason the 'flex' versions will be done as a separate
conversion.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
378 lines
9.6 KiB
C
378 lines
9.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* Copyright 2006, Johannes Berg <johannes@sipsolutions.net>
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*/
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/* just for IFNAMSIZ */
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#include <linux/if.h>
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#include <linux/slab.h>
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#include <linux/export.h>
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#include "led.h"
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void ieee80211_led_assoc(struct ieee80211_local *local, bool associated)
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{
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if (!atomic_read(&local->assoc_led_active))
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return;
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if (associated)
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led_trigger_event(&local->assoc_led, LED_FULL);
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else
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led_trigger_event(&local->assoc_led, LED_OFF);
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}
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void ieee80211_led_radio(struct ieee80211_local *local, bool enabled)
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{
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if (!atomic_read(&local->radio_led_active))
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return;
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if (enabled)
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led_trigger_event(&local->radio_led, LED_FULL);
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else
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led_trigger_event(&local->radio_led, LED_OFF);
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}
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void ieee80211_alloc_led_names(struct ieee80211_local *local)
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{
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local->rx_led.name = kasprintf(GFP_KERNEL, "%srx",
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wiphy_name(local->hw.wiphy));
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local->tx_led.name = kasprintf(GFP_KERNEL, "%stx",
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wiphy_name(local->hw.wiphy));
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local->assoc_led.name = kasprintf(GFP_KERNEL, "%sassoc",
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wiphy_name(local->hw.wiphy));
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local->radio_led.name = kasprintf(GFP_KERNEL, "%sradio",
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wiphy_name(local->hw.wiphy));
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}
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void ieee80211_free_led_names(struct ieee80211_local *local)
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{
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kfree(local->rx_led.name);
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kfree(local->tx_led.name);
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kfree(local->assoc_led.name);
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kfree(local->radio_led.name);
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}
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static int ieee80211_tx_led_activate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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tx_led);
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atomic_inc(&local->tx_led_active);
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return 0;
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}
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static void ieee80211_tx_led_deactivate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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tx_led);
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atomic_dec(&local->tx_led_active);
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}
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static int ieee80211_rx_led_activate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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rx_led);
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atomic_inc(&local->rx_led_active);
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return 0;
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}
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static void ieee80211_rx_led_deactivate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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rx_led);
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atomic_dec(&local->rx_led_active);
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}
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static int ieee80211_assoc_led_activate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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assoc_led);
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atomic_inc(&local->assoc_led_active);
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return 0;
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}
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static void ieee80211_assoc_led_deactivate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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assoc_led);
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atomic_dec(&local->assoc_led_active);
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}
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static int ieee80211_radio_led_activate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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radio_led);
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atomic_inc(&local->radio_led_active);
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return 0;
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}
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static void ieee80211_radio_led_deactivate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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radio_led);
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atomic_dec(&local->radio_led_active);
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}
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static int ieee80211_tpt_led_activate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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tpt_led);
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atomic_inc(&local->tpt_led_active);
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return 0;
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}
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static void ieee80211_tpt_led_deactivate(struct led_classdev *led_cdev)
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{
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struct ieee80211_local *local = container_of(led_cdev->trigger,
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struct ieee80211_local,
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tpt_led);
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atomic_dec(&local->tpt_led_active);
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}
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void ieee80211_led_init(struct ieee80211_local *local)
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{
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atomic_set(&local->rx_led_active, 0);
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local->rx_led.activate = ieee80211_rx_led_activate;
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local->rx_led.deactivate = ieee80211_rx_led_deactivate;
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if (local->rx_led.name && led_trigger_register(&local->rx_led)) {
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kfree(local->rx_led.name);
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local->rx_led.name = NULL;
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}
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atomic_set(&local->tx_led_active, 0);
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local->tx_led.activate = ieee80211_tx_led_activate;
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local->tx_led.deactivate = ieee80211_tx_led_deactivate;
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if (local->tx_led.name && led_trigger_register(&local->tx_led)) {
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kfree(local->tx_led.name);
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local->tx_led.name = NULL;
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}
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atomic_set(&local->assoc_led_active, 0);
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local->assoc_led.activate = ieee80211_assoc_led_activate;
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local->assoc_led.deactivate = ieee80211_assoc_led_deactivate;
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if (local->assoc_led.name && led_trigger_register(&local->assoc_led)) {
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kfree(local->assoc_led.name);
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local->assoc_led.name = NULL;
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}
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atomic_set(&local->radio_led_active, 0);
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local->radio_led.activate = ieee80211_radio_led_activate;
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local->radio_led.deactivate = ieee80211_radio_led_deactivate;
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if (local->radio_led.name && led_trigger_register(&local->radio_led)) {
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kfree(local->radio_led.name);
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local->radio_led.name = NULL;
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}
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atomic_set(&local->tpt_led_active, 0);
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if (local->tpt_led_trigger) {
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local->tpt_led.activate = ieee80211_tpt_led_activate;
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local->tpt_led.deactivate = ieee80211_tpt_led_deactivate;
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if (led_trigger_register(&local->tpt_led)) {
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kfree(local->tpt_led_trigger);
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local->tpt_led_trigger = NULL;
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}
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}
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}
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void ieee80211_led_exit(struct ieee80211_local *local)
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{
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if (local->radio_led.name)
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led_trigger_unregister(&local->radio_led);
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if (local->assoc_led.name)
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led_trigger_unregister(&local->assoc_led);
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if (local->tx_led.name)
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led_trigger_unregister(&local->tx_led);
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if (local->rx_led.name)
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led_trigger_unregister(&local->rx_led);
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if (local->tpt_led_trigger) {
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led_trigger_unregister(&local->tpt_led);
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kfree(local->tpt_led_trigger);
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}
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}
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const char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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return local->radio_led.name;
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}
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EXPORT_SYMBOL(__ieee80211_get_radio_led_name);
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const char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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return local->assoc_led.name;
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}
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EXPORT_SYMBOL(__ieee80211_get_assoc_led_name);
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const char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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return local->tx_led.name;
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}
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EXPORT_SYMBOL(__ieee80211_get_tx_led_name);
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const char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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return local->rx_led.name;
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}
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EXPORT_SYMBOL(__ieee80211_get_rx_led_name);
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static unsigned long tpt_trig_traffic(struct ieee80211_local *local,
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struct tpt_led_trigger *tpt_trig)
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{
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unsigned long traffic, delta;
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traffic = tpt_trig->tx_bytes + tpt_trig->rx_bytes;
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delta = traffic - tpt_trig->prev_traffic;
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tpt_trig->prev_traffic = traffic;
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return DIV_ROUND_UP(delta, 1024 / 8);
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}
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static void tpt_trig_timer(struct timer_list *t)
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{
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struct tpt_led_trigger *tpt_trig = timer_container_of(tpt_trig, t,
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timer);
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struct ieee80211_local *local = tpt_trig->local;
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unsigned long on, off, tpt;
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int i;
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if (!tpt_trig->running)
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return;
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mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
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tpt = tpt_trig_traffic(local, tpt_trig);
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/* default to just solid on */
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on = 1;
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off = 0;
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for (i = tpt_trig->blink_table_len - 1; i >= 0; i--) {
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if (tpt_trig->blink_table[i].throughput < 0 ||
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tpt > tpt_trig->blink_table[i].throughput) {
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off = tpt_trig->blink_table[i].blink_time / 2;
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on = tpt_trig->blink_table[i].blink_time - off;
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break;
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}
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}
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led_trigger_blink(&local->tpt_led, on, off);
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}
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const char *
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__ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw,
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unsigned int flags,
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const struct ieee80211_tpt_blink *blink_table,
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unsigned int blink_table_len)
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{
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struct ieee80211_local *local = hw_to_local(hw);
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struct tpt_led_trigger *tpt_trig;
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if (WARN_ON(local->tpt_led_trigger))
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return NULL;
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tpt_trig = kzalloc_obj(struct tpt_led_trigger);
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if (!tpt_trig)
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return NULL;
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snprintf(tpt_trig->name, sizeof(tpt_trig->name),
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"%stpt", wiphy_name(local->hw.wiphy));
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local->tpt_led.name = tpt_trig->name;
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tpt_trig->blink_table = blink_table;
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tpt_trig->blink_table_len = blink_table_len;
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tpt_trig->want = flags;
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tpt_trig->local = local;
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timer_setup(&tpt_trig->timer, tpt_trig_timer, 0);
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local->tpt_led_trigger = tpt_trig;
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return tpt_trig->name;
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}
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EXPORT_SYMBOL(__ieee80211_create_tpt_led_trigger);
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static void ieee80211_start_tpt_led_trig(struct ieee80211_local *local)
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{
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struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
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if (tpt_trig->running)
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return;
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/* reset traffic */
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tpt_trig_traffic(local, tpt_trig);
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tpt_trig->running = true;
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tpt_trig_timer(&tpt_trig->timer);
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mod_timer(&tpt_trig->timer, round_jiffies(jiffies + HZ));
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}
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static void ieee80211_stop_tpt_led_trig(struct ieee80211_local *local)
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{
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struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
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if (!tpt_trig->running)
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return;
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tpt_trig->running = false;
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timer_delete_sync(&tpt_trig->timer);
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led_trigger_event(&local->tpt_led, LED_OFF);
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}
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void ieee80211_mod_tpt_led_trig(struct ieee80211_local *local,
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unsigned int types_on, unsigned int types_off)
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{
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struct tpt_led_trigger *tpt_trig = local->tpt_led_trigger;
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bool allowed;
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WARN_ON(types_on & types_off);
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if (!tpt_trig)
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return;
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tpt_trig->active &= ~types_off;
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tpt_trig->active |= types_on;
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/*
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* Regardless of wanted state, we shouldn't blink when
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* the radio is disabled -- this can happen due to some
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* code ordering issues with __ieee80211_recalc_idle()
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* being called before the radio is started.
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*/
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allowed = tpt_trig->active & IEEE80211_TPT_LEDTRIG_FL_RADIO;
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if (!allowed || !(tpt_trig->active & tpt_trig->want))
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ieee80211_stop_tpt_led_trig(local);
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else
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ieee80211_start_tpt_led_trig(local);
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}
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