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| author |   Sebastian Ott <sebott@linux.vnet.ibm.com> | 2016-01-22 14:11:21 +0100 |
|---|---|---|
| committer |   Martin Schwidefsky <schwidefsky@de.ibm.com> | 2016-01-26 12:46:45 +0100 |
| commit | f5e44f82c1848d8e55fb0061308f14c0884e5483 (patch) | |
| tree | ba74ab56d98031e9fc83e154b8691b5900321d6f /arch/s390/pci | |
| parent | s390/pci: set error state for unusable functions (diff) | |
| download | linux-dev-f5e44f82c1848d8e55fb0061308f14c0884e5483.tar.xz linux-dev-f5e44f82c1848d8e55fb0061308f14c0884e5483.zip | |
s390/pci: remove iomap sanity checks
Since each iomap_entry handles only one bar of one pci function
(even when disjunct ranges of a bar are mapped) the sanity check
in pci_iomap_range is not needed and can be removed.
Also convert the remaining BUG_ONs to WARN_ONs.
Signed-off-by: Sebastian Ott <sebott@linux.vnet.ibm.com>
Reviewed-by: Gerald Schaefer <gerald.schaefer@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch/s390/pci')
| -rw-r--r-- | arch/s390/pci/pci.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index d28d194d580c..8f19c8f9d660 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -275,15 +275,10 @@ void __iomem *pci_iomap_range(struct pci_dev *pdev, idx = zdev->bars[bar].map_idx; spin_lock(&zpci_iomap_lock); - if (zpci_iomap_start[idx].count++) { - BUG_ON(zpci_iomap_start[idx].fh != zdev->fh || - zpci_iomap_start[idx].bar != bar); - } else { - zpci_iomap_start[idx].fh = zdev->fh; - zpci_iomap_start[idx].bar = bar; - } /* Detect overrun */ - BUG_ON(!zpci_iomap_start[idx].count); + WARN_ON(!++zpci_iomap_start[idx].count); + zpci_iomap_start[idx].fh = zdev->fh; + zpci_iomap_start[idx].bar = bar; spin_unlock(&zpci_iomap_lock); return (void __iomem *) ZPCI_ADDR(idx) + offset; @@ -302,7 +297,7 @@ void pci_iounmap(struct pci_dev *pdev, void __iomem *addr) spin_lock(&zpci_iomap_lock); /* Detect underrun */ - BUG_ON(!zpci_iomap_start[idx].count); + WARN_ON(!zpci_iomap_start[idx].count); if (!--zpci_iomap_start[idx].count) { zpci_iomap_start[idx].fh = 0; zpci_iomap_start[idx].bar = 0; |