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 <kis...@ti.com>
Signed-off-by: Sekhar Nori <nsek...@ti.com>
---
drivers/pci/endpoint/functions/pci-epf-test.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
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;
--
2.11.0
