diff options
| author |   Sebastian Ott <sebott@linux.ibm.com> | 2019-06-27 15:47:13 +0200 |
|---|---|---|
| committer |   Vasily Gorbik <gor@linux.ibm.com> | 2019-07-04 13:13:59 +0200 |
| commit | 6ae3483d411638e471ca0498629b17939f1c20f4 (patch) | |
| tree | 82be8900f71803ee7924797ce064541fd4545304 /arch/s390/pci | |
| parent | s390/pci: deal with devices that have no support for MIO instructions (diff) | |
| download | linux-dev-6ae3483d411638e471ca0498629b17939f1c20f4.tar.xz linux-dev-6ae3483d411638e471ca0498629b17939f1c20f4.zip | |
s390/pci: correctly handle MIO opt-out
Do not issue CLP_SET_ENABLE_MIO after opting out of MIO instruction
usage. This should not fix a bug but reduce overhead within firmware.
Signed-off-by: Sebastian Ott <sebott@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
Diffstat (limited to 'arch/s390/pci')
| -rw-r--r-- | arch/s390/pci/pci_clp.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/s390/pci/pci_clp.c b/arch/s390/pci/pci_clp.c index d03631dba7c2..9bdff4defef1 100644 --- a/arch/s390/pci/pci_clp.c +++ b/arch/s390/pci/pci_clp.c @@ -291,7 +291,7 @@ int clp_enable_fh(struct zpci_dev *zdev, u8 nr_dma_as) goto out; zdev->fh = fh; - if (zdev->mio_capable) { + if (zpci_use_mio(zdev)) { rc = clp_set_pci_fn(&fh, nr_dma_as, CLP_SET_ENABLE_MIO); zpci_dbg(3, "ena mio fid:%x, fh:%x, rc:%d\n", zdev->fid, fh, rc); if (rc) |