diff options
Diffstat (limited to 'package/kernel/mac80211/patches/rt2x00/027-rt2800mmio-fetch-tx-status-changes.patch')
-rw-r--r-- | package/kernel/mac80211/patches/rt2x00/027-rt2800mmio-fetch-tx-status-changes.patch | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/package/kernel/mac80211/patches/rt2x00/027-rt2800mmio-fetch-tx-status-changes.patch b/package/kernel/mac80211/patches/rt2x00/027-rt2800mmio-fetch-tx-status-changes.patch deleted file mode 100644 index 4bb62c2288..0000000000 --- a/package/kernel/mac80211/patches/rt2x00/027-rt2800mmio-fetch-tx-status-changes.patch +++ /dev/null @@ -1,61 +0,0 @@ -From f6a9618198e190a2ba09ce3f0aa8e9ee1763bd38 Mon Sep 17 00:00:00 2001 -From: Stanislaw Gruszka <sgruszka@redhat.com> -Date: Sat, 9 Feb 2019 12:08:34 +0100 -X-Patchwork-Submitter: Stanislaw Gruszka <sgruszka@redhat.com> -X-Patchwork-Id: 10804443 -X-Patchwork-Delegate: kvalo@adurom.com -Subject: [PATCH 24/28] rt2800mmio: fetch tx status changes - -Prepare to use rt2800mmio_fetch_txstatus() in concurrent manner and drop -return value since is not longer needed. - -Signed-off-by: Stanislaw Gruszka <sgruszka@redhat.com> ---- - drivers/net/wireless/ralink/rt2x00/rt2800mmio.c | 17 +++++++++-------- - 1 file changed, 9 insertions(+), 8 deletions(-) - ---- a/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c -+++ b/drivers/net/wireless/ralink/rt2x00/rt2800mmio.c -@@ -255,12 +255,12 @@ void rt2800mmio_autowake_tasklet(unsigne - } - EXPORT_SYMBOL_GPL(rt2800mmio_autowake_tasklet); - --static bool rt2800mmio_fetch_txstatus(struct rt2x00_dev *rt2x00dev) -+static void rt2800mmio_fetch_txstatus(struct rt2x00_dev *rt2x00dev) - { - u32 status; -- bool more = false; -+ unsigned long flags; - -- /* FIXEME: rewrite this comment -+ /* - * The TX_FIFO_STATUS interrupt needs special care. We should - * read TX_STA_FIFO but we should do it immediately as otherwise - * the register can overflow and we would lose status reports. -@@ -271,20 +271,21 @@ static bool rt2800mmio_fetch_txstatus(st - * because we can schedule the tasklet multiple times (when the - * interrupt fires again during tx status processing). - * -- * txstatus tasklet is called with INT_SOURCE_CSR_TX_FIFO_STATUS -- * disabled so have only one producer and one consumer - we don't -- * need to lock the kfifo. -+ * We also read statuses from tx status timeout timer, use -+ * lock to prevent concurent writes to fifo. - */ -+ -+ spin_lock_irqsave(&rt2x00dev->irqmask_lock, flags); -+ - while (!kfifo_is_full(&rt2x00dev->txstatus_fifo)) { - status = rt2x00mmio_register_read(rt2x00dev, TX_STA_FIFO); - if (!rt2x00_get_field32(status, TX_STA_FIFO_VALID)) - break; - - kfifo_put(&rt2x00dev->txstatus_fifo, status); -- more = true; - } - -- return more; -+ spin_unlock_irqrestore(&rt2x00dev->irqmask_lock, flags); - } - - void rt2800mmio_txstatus_tasklet(unsigned long data) |