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authorMika Westerberg <mika.westerberg@linux.intel.com>2017-10-02 13:38:39 +0300
committerDavid S. Miller <davem@davemloft.net>2017-10-02 11:24:41 -0700
commit22b7de1000e66d739c431d6be4e7e97c69fa7c98 (patch)
treef26d6823b1946b7cf72e30c385f5d910699f0f4e /include/linux/thunderbolt.h
parent2a91ec63f8a11e70d4b958dd4df867fec0247179 (diff)
thunderbolt: Use spinlock in ring serialization
This makes it possible to enqueue frames also from atomic context which is needed for example, when networking packets are sent 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.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/thunderbolt.h b/include/linux/thunderbolt.h
index e3b9af7be0ad..cf9e42db780f 100644
--- a/include/linux/thunderbolt.h
+++ b/include/linux/thunderbolt.h
@@ -448,7 +448,7 @@ struct tb_nhi {
* @eof_mask: Bit mask used to detect end of frame PDF
*/
struct tb_ring {
- struct mutex lock;
+ spinlock_t lock;
struct tb_nhi *nhi;
int size;
int hop;