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| author | Alan Mikhak | 2019-05-23 23:47:59 +0200 |
|---|---|---|
| committer | Lorenzo Pieralisi | 2019-06-11 11:55:22 +0200 |
| commit | f16fb16ed16c7f561e9c41c9ae4107c7f6aa553c (patch) | |
| tree | 927837209d527c76609ad513fb3fe0eee0ac5d7c /drivers/pci | |
| parent | PCI: endpoint: Set endpoint controller pointer to NULL (diff) | |
| download | kernel-qcow2-linux-f16fb16ed16c7f561e9c41c9ae4107c7f6aa553c.tar.gz kernel-qcow2-linux-f16fb16ed16c7f561e9c41c9ae4107c7f6aa553c.tar.xz kernel-qcow2-linux-f16fb16ed16c7f561e9c41c9ae4107c7f6aa553c.zip | |
PCI: endpoint: Allocate enough space for fixed size BAR
PCI endpoint test function code should honor the .bar_fixed_size parameter
from underlying endpoint controller drivers or results may be unexpected.
In pci_epf_test_alloc_space(), check if BAR being used for test
register space is a fixed size BAR. If so, allocate the required fixed
size.
Signed-off-by: Alan Mikhak <alan.mikhak@sifive.com>
Signed-off-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
Acked-by: Kishon Vijay Abraham I <kishon@ti.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/endpoint/functions/pci-epf-test.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/drivers/pci/endpoint/functions/pci-epf-test.c b/drivers/pci/endpoint/functions/pci-epf-test.c index 27806987e93b..7d41e6684b87 100644 --- a/drivers/pci/endpoint/functions/pci-epf-test.c +++ b/drivers/pci/endpoint/functions/pci-epf-test.c @@ -434,10 +434,16 @@ static int pci_epf_test_alloc_space(struct pci_epf *epf) int bar; enum pci_barno test_reg_bar = epf_test->test_reg_bar; const struct pci_epc_features *epc_features; + size_t test_reg_size; epc_features = epf_test->epc_features; - base = pci_epf_alloc_space(epf, sizeof(struct pci_epf_test_reg), + if (epc_features->bar_fixed_size[test_reg_bar]) + test_reg_size = bar_size[test_reg_bar]; + else + test_reg_size = sizeof(struct pci_epf_test_reg); + + base = pci_epf_alloc_space(epf, test_reg_size, test_reg_bar, epc_features->align); if (!base) { dev_err(dev, "Failed to allocated register space\n"); |