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authorKishon Vijay Abraham I <kishon@ti.com>2020-02-24 12:53:35 +0300
committerLorenzo Pieralisi <lorenzo.pieralisi@arm.com>2020-02-24 13:07:52 +0300
commit3d3248dbd018502f654064c78efcd2e165ab3486 (patch)
tree12af4c31ba120e244005a9c7940a31dbe17e9b45 /include/linux/pci-epc.h
parent5779dd0a7dbd71e82478fb0bf125cc6cd3c43266 (diff)
downloadlinux-3d3248dbd018502f654064c78efcd2e165ab3486.tar.xz
PCI: endpoint: Replace spinlock with mutex
The pci_epc_ops is not intended to be invoked from interrupt context. Hence replace spin_lock_irqsave and spin_unlock_irqrestore with mutex_lock and mutex_unlock respectively. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Diffstat (limited to 'include/linux/pci-epc.h')
-rw-r--r--include/linux/pci-epc.h6
1 files changed, 3 insertions, 3 deletions
diff --git a/include/linux/pci-epc.h b/include/linux/pci-epc.h
index 36644ccd32ac..9dd60f2e9705 100644
--- a/include/linux/pci-epc.h
+++ b/include/linux/pci-epc.h
@@ -88,7 +88,7 @@ struct pci_epc_mem {
* @mem: address space of the endpoint controller
* @max_functions: max number of functions that can be configured in this EPC
* @group: configfs group representing the PCI EPC device
- * @lock: spinlock to protect pci_epc ops
+ * @lock: mutex to protect pci_epc ops
* @notifier: used to notify EPF of any EPC events (like linkup)
*/
struct pci_epc {
@@ -98,8 +98,8 @@ struct pci_epc {
struct pci_epc_mem *mem;
u8 max_functions;
struct config_group *group;
- /* spinlock to protect against concurrent access of EP controller */
- spinlock_t lock;
+ /* mutex to protect against concurrent access of EP controller */
+ struct mutex lock;
struct atomic_notifier_head notifier;
};