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authorJakub Kicinski <kuba@kernel.org>2021-08-13 06:41:22 -0700
committerJakub Kicinski <kuba@kernel.org>2021-08-13 06:41:22 -0700
commitf4083a752a3b7dc2076432129c8469d02c25318e (patch)
tree6518d6c858a630508466906e30683d60bbef9748 /drivers/dma/xilinx/xilinx_dma.c
parentb769cf44ed55f4b277b89cf53df6092f0c9082d0 (diff)
parentf8e6dfc64f6135d1b6c5215c14cd30b9b60a0008 (diff)
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Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Conflicts: drivers/net/ethernet/broadcom/bnxt/bnxt_ptp.h 9e26680733d5 ("bnxt_en: Update firmware call to retrieve TX PTP timestamp") 9e518f25802c ("bnxt_en: 1PPS functions to configure TSIO pins") 099fdeda659d ("bnxt_en: Event handler for PPS events") kernel/bpf/helpers.c include/linux/bpf-cgroup.h a2baf4e8bb0f ("bpf: Fix potentially incorrect results with bpf_get_local_storage()") c7603cfa04e7 ("bpf: Add ambient BPF runtime context stored in current") drivers/net/ethernet/mellanox/mlx5/core/pci_irq.c 5957cc557dc5 ("net/mlx5: Set all field of mlx5_irq before inserting it to the xarray") 2d0b41a37679 ("net/mlx5: Refcount mlx5_irq with integer") MAINTAINERS 7b637cd52f02 ("MAINTAINERS: fix Microchip CAN BUS Analyzer Tool entry typo") 7d901a1e878a ("net: phy: add Maxlinear GPY115/21x/24x driver") Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/dma/xilinx/xilinx_dma.c')
-rw-r--r--drivers/dma/xilinx/xilinx_dma.c12
1 files changed, 12 insertions, 0 deletions
diff --git a/drivers/dma/xilinx/xilinx_dma.c b/drivers/dma/xilinx/xilinx_dma.c
index 75c0b8e904e5..4b9530a7bf65 100644
--- a/drivers/dma/xilinx/xilinx_dma.c
+++ b/drivers/dma/xilinx/xilinx_dma.c
@@ -394,6 +394,7 @@ struct xilinx_dma_tx_descriptor {
* @genlock: Support genlock mode
* @err: Channel has errors
* @idle: Check for channel idle
+ * @terminating: Check for channel being synchronized by user
* @tasklet: Cleanup work after irq
* @config: Device configuration info
* @flush_on_fsync: Flush on Frame sync
@@ -431,6 +432,7 @@ struct xilinx_dma_chan {
bool genlock;
bool err;
bool idle;
+ bool terminating;
struct tasklet_struct tasklet;
struct xilinx_vdma_config config;
bool flush_on_fsync;
@@ -1049,6 +1051,13 @@ static void xilinx_dma_chan_desc_cleanup(struct xilinx_dma_chan *chan)
/* Run any dependencies, then free the descriptor */
dma_run_dependencies(&desc->async_tx);
xilinx_dma_free_tx_descriptor(chan, desc);
+
+ /*
+ * While we ran a callback the user called a terminate function,
+ * which takes care of cleaning up any remaining descriptors
+ */
+ if (chan->terminating)
+ break;
}
spin_unlock_irqrestore(&chan->lock, flags);
@@ -1965,6 +1974,8 @@ static dma_cookie_t xilinx_dma_tx_submit(struct dma_async_tx_descriptor *tx)
if (desc->cyclic)
chan->cyclic = true;
+ chan->terminating = false;
+
spin_unlock_irqrestore(&chan->lock, flags);
return cookie;
@@ -2436,6 +2447,7 @@ static int xilinx_dma_terminate_all(struct dma_chan *dchan)
xilinx_dma_chan_reset(chan);
/* Remove and free all of the descriptors in the lists */
+ chan->terminating = true;
xilinx_dma_free_descriptors(chan);
chan->idle = true;