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authorSebastian Ott <sebott@linux.ibm.com>2019-06-27 15:47:13 +0200
committerVasily Gorbik <gor@linux.ibm.com>2019-07-04 13:13:59 +0200
commit6ae3483d411638e471ca0498629b17939f1c20f4 (patch)
tree82be8900f71803ee7924797ce064541fd4545304 /arch/s390
parentc7ff0e918a7cb39f6bfb2a7bdc30199986ff1571 (diff)
downloadlinux-6ae3483d411638e471ca0498629b17939f1c20f4.tar.bz2
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')
-rw-r--r--arch/s390/pci/pci_clp.c2
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)