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| author | Kishon Vijay Abraham I <kishon@ti.com> | 2017-08-18 20:27:57 +0530 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2017-08-29 16:00:37 -0500 |
| commit | 09232c7acbd451c6da555ffdebad82661bf3d0be (patch) | |
| tree | c19cb366c046bc887db4075f3ec6b3c9a0c86a39 /drivers/pci/endpoint | |
| parent | 52c9285d47459cf241e144c7d8ef15941ba1b181 (diff) | |
| download | linux-0-day-09232c7acbd451c6da555ffdebad82661bf3d0be.tar.gz linux-0-day-09232c7acbd451c6da555ffdebad82661bf3d0be.tar.xz | |
PCI: endpoint: Add "volatile" to pci_epf_test_reg
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>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Diffstat (limited to 'drivers/pci/endpoint')
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index 53fff80303370..5cbc05a0762d2 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; |