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Diffstat (limited to 'target/linux/generic/pending-3.18/092-01-spi-Check-to-see-if-the-device-is-processing-a-messa.patch')
-rw-r--r--target/linux/generic/pending-3.18/092-01-spi-Check-to-see-if-the-device-is-processing-a-messa.patch47
1 files changed, 0 insertions, 47 deletions
diff --git a/target/linux/generic/pending-3.18/092-01-spi-Check-to-see-if-the-device-is-processing-a-messa.patch b/target/linux/generic/pending-3.18/092-01-spi-Check-to-see-if-the-device-is-processing-a-messa.patch
deleted file mode 100644
index fa3ab6a638..0000000000
--- a/target/linux/generic/pending-3.18/092-01-spi-Check-to-see-if-the-device-is-processing-a-messa.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From: Mark Brown <broonie@kernel.org>
-Date: Tue, 9 Dec 2014 19:46:56 +0000
-Subject: [PATCH] spi: Check to see if the device is processing a message
- before we idle
-
-cur_msg is updated under the queue lock and holds the message we are
-currently processing. Since currently we only ever do removals in the
-pump kthread it doesn't matter in what order we do things but we want
-to be able to push things out from the submitting thread so pull the
-check to see if we're currently handling a message before we check to
-see if the queue is idle.
-
-Signed-off-by: Mark Brown <broonie@kernel.org>
----
-
---- a/drivers/spi/spi.c
-+++ b/drivers/spi/spi.c
-@@ -891,8 +891,16 @@ static void spi_pump_messages(struct kth
- bool was_busy = false;
- int ret;
-
-- /* Lock queue and check for queue work */
-+ /* Lock queue */
- spin_lock_irqsave(&master->queue_lock, flags);
-+
-+ /* Make sure we are not already running a message */
-+ if (master->cur_msg) {
-+ spin_unlock_irqrestore(&master->queue_lock, flags);
-+ return;
-+ }
-+
-+ /* Check if the queue is idle */
- if (list_empty(&master->queue) || !master->running) {
- if (!master->busy) {
- spin_unlock_irqrestore(&master->queue_lock, flags);
-@@ -916,11 +924,6 @@ static void spi_pump_messages(struct kth
- return;
- }
-
-- /* Make sure we are not already running a message */
-- if (master->cur_msg) {
-- spin_unlock_irqrestore(&master->queue_lock, flags);
-- return;
-- }
- /* Extract head of queue */
- master->cur_msg =
- list_first_entry(&master->queue, struct spi_message, queue);