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authorJon Cooper <jcooper@solarflare.com>2017-02-08 16:51:18 +0000
committerDavid S. Miller <davem@davemloft.net>2017-02-09 16:47:53 -0500
commit8a531400623c52b09bc3b718e9a6142eb60a11a7 (patch)
tree69c112ee46b2abd486bc2c5c9d79d910f8533ba3 /tools/build/feature/test-lzma.c
parentda50ae2eae96e00e0188b24014efc10161e60925 (diff)
sfc: harden driver against MC resets during initial probe
This is mainly to prepare for a future overlay networking patch that could cause an MC reset at probe time if the UDP tunnel port list is set immediately upon driver load. Signed-off-by: Edward Cree <ecree@solarflare.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools/build/feature/test-lzma.c')
0 files changed, 0 insertions, 0 deletions
e active dma transfers. Increasing the autosuspend delay won't help as that the delay could be potentially seconds, and it's best to let the USB subsystem to deal with the timeouts on errors. The earlier attempt for runtime PM was buggy as the pm_runtime_get/put() calls could get unpaired easily as they did not follow the state of the chan_busy array as described in commit 098de42ad670 ("dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected". Let's fix the issue by adding pm_runtime_get() to where a new transfer is added to the chan_busy array, and calls to pm_runtime_put() where chan_busy array entry is cleared. This prevents any autosuspend timeouts from happening while dma transfers are active. Fixes: 098de42ad670 ("dmaengine: cppi41: Fix unpaired pm runtime when only a USB hub is connected") Fixes: fdea2d09b997 ("dmaengine: cppi41: Add basic PM runtime support") Cc: Andy Shevchenko <andy.shevchenko@gmail.com> Cc: Bin Liu <b-liu@ti.com> Cc: Grygorii Strashko <grygorii.strashko@ti.com> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Patrick Titiano <ptitiano@baylibre.com> Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com> Signed-off-by: Tony Lindgren <tony@atomide.com> Tested-by: Bin Liu <b-liu@ti.com> Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Diffstat (limited to 'net/bluetooth/a2mp.h')