openwrt/package/kernel/mac80211/patches/rt2x00/068-rt2x00usb-remove-unnecessary-rx-flag-checks.patch
Daniel Golle 439ac8104b mac80211: rt2x00: backport upstream patches
Import patches from upstream to sync 19.07 with master:
 9f3e3323e996 rt2x00: allow to specify watchdog interval
 2034afe4db4a rt2800: add helpers for reading dma done index
 759c5b599cf4 rt2800: initial watchdog implementation
 09db3b000619 rt2800: add pre_reset_hw callback
 710e6cc1595e rt2800: do not nullify initialization vector data
 e403fa31ed71 rt2x00: add restart hw
 0f47aeeada2a rt2800: do not enable watchdog by default
 41a531ffa4c5 rt2x00usb: fix rx queue hang
 3b902fa811cf rt2x00usb: remove unnecessary rx flag checks
 1dc244064c47 rt2x00: no need to check return value of debugfs_create functions
 706f0182b1ad rt2800usb: Add new rt2800usb device PLANEX GW-USMicroN
 95844124385e rt2x00: clear IV's on start to fix AP mode regression
 567a9b766b47 rt2x00: do not set IEEE80211_TX_STAT_AMPDU_NO_BACK on tx status
 14d5e14c8a6c rt2x00: clear up IV's on key removal
 13fa451568ab Revert "rt2800: enable TX_PIN_CFG_LNA_PE_ bits per band"
 --pending--  rt2800: remove errornous duplicate condition

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
2019-11-05 10:54:05 +01:00

52 lines
2.0 KiB
Diff

From 3b902fa811cf6bf7f9ad0ffb77d0a133e0b3bd61 Mon Sep 17 00:00:00 2001
From: Soeren Moch <smoch@web.de>
Date: Mon, 1 Jul 2019 12:53:14 +0200
Subject: [PATCH 09/15] rt2x00usb: remove unnecessary rx flag checks
In contrast to the TX path, there is no need to separately read the transfer
status from the device after receiving RX data. Consequently, there is no
real STATUS_PENDING RX processing queue entry state.
Remove the unnecessary ENTRY_DATA_STATUS_PENDING flag checks from the RX path.
Also remove the misleading comment about reading RX status from device.
Suggested-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Soeren Moch <smoch@web.de>
Acked-by: Stanislaw Gruszka <sgruszka@redhat.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
---
drivers/net/wireless/ralink/rt2x00/rt2x00usb.c | 9 +++------
1 file changed, 3 insertions(+), 6 deletions(-)
--- a/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
+++ b/drivers/net/wireless/ralink/rt2x00/rt2x00usb.c
@@ -360,8 +360,7 @@ static void rt2x00usb_work_rxdone(struct
while (!rt2x00queue_empty(rt2x00dev->rx)) {
entry = rt2x00queue_get_entry(rt2x00dev->rx, Q_INDEX_DONE);
- if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
- !test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
+ if (test_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
break;
/*
@@ -400,8 +399,7 @@ static void rt2x00usb_interrupt_rxdone(s
rt2x00lib_dmadone(entry);
/*
- * Schedule the delayed work for reading the RX status
- * from the device.
+ * Schedule the delayed work for processing RX data
*/
queue_work(rt2x00dev->workqueue, &rt2x00dev->rxdone_work);
}
@@ -413,8 +411,7 @@ static bool rt2x00usb_kick_rx_entry(stru
struct queue_entry_priv_usb *entry_priv = entry->priv_data;
int status;
- if (test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags) ||
- test_bit(ENTRY_DATA_STATUS_PENDING, &entry->flags))
+ if (test_and_set_bit(ENTRY_OWNER_DEVICE_DATA, &entry->flags))
return false;
rt2x00lib_dmastart(entry);