diff mbox series

[05/18] PCI: endpoint: functions/pci-epf-test: Add "volatile" to pci_epf_test_reg

Message ID 20170818145810.17649-6-kishon@ti.com
State Accepted
Commit 09232c7acbd451c6da555ffdebad82661bf3d0be
Headers show
Series PCI: endpoint: Make pci-epf-test more flexible | expand

Commit Message

Kishon Vijay Abraham I Aug. 18, 2017, 2:57 p.m. UTC 
struct pci_epf_test_reg is the MEMSPACE of pci-epf-test function driver
that will be accessed by the "host" for programming the pci-epf-test
device. So this structure shouldn't be subjected to compiler optimization
in pci_epf_test_cmd_handler() since the values can be changed by code
outside the scope of current code at any time.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>

Signed-off-by: Sekhar Nori <nsekhar@ti.com>

---
 drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

-- 
2.11.0
diff mbox series

Patch

diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c
index 53fff8030337..5cbc05a0762d 100644
--- a/drivers/pci/endpoint/functions/pci-epf-test.c
+++ b/drivers/pci/endpoint/functions/pci-epf-test.c
@@ -267,7 +267,7 @@  static void pci_epf_test_cmd_handler(struct work_struct *work)
 						     cmd_handler.work);
 	struct pci_epf *epf = epf_test->epf;
 	struct pci_epc *epc = epf->epc;
-	struct pci_epf_test_reg *reg = epf_test->reg[0];
+	volatile struct pci_epf_test_reg *reg = epf_test->reg[0];
 
 	if (!reg->command)
 		goto reset_handler;