diff options
| author | Mika Westerberg <mika.westerberg@linux.intel.com> | 2017-10-02 13:38:40 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-10-02 11:24:41 -0700 |
| commit | 59120e06101db72442acf4c8b364a0c76d8faa68 (patch) | |
| tree | 062cbf13cca6f2effcc88b190a554e68130377dc /include/linux/thunderbolt.h | |
| parent | 22b7de1000e66d739c431d6be4e7e97c69fa7c98 (diff) | |
| download | linux-next-59120e06101db72442acf4c8b364a0c76d8faa68.tar.gz | |
thunderbolt: Use spinlock in NHI serialization
This is needed because ring polling functionality can be called from
atomic contexts when networking and other high-speed traffic is
transferred over a Thunderbolt cable.
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Michael Jamet <michael.jamet@intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/linux/thunderbolt.h')
| -rw-r--r-- | include/linux/thunderbolt.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h index cf9e42db780f..d59e3f9a35c4 100644 --- a/include/linux/thunderbolt.h +++ b/include/linux/thunderbolt.h @@ -415,7 +415,7 @@ static inline struct tb_xdomain *tb_service_parent(struct tb_service *svc) * @hop_count: Number of rings (end point hops) supported by NHI. */ struct tb_nhi { - struct mutex lock; + spinlock_t lock; struct pci_dev *pdev; void __iomem *iobase; struct tb_ring **tx_rings; |