diff options
| author | Daniel Hellstrom <daniel@gaisler.com> | 2015-02-27 16:44:48 +0100 |
|---|---|---|
| committer | Daniel Hellstrom <daniel@gaisler.com> | 2015-04-17 01:10:26 +0200 |
| commit | a2e0e6e59e4ac44b7495a215731dc0ea1c0f20e1 (patch) | |
| tree | 18967e22fbfa096afe38aeeada312799426676d0 /cpukit/libpci | |
| parent | DRVMGR: updated copyright into one line only (diff) | |
| download | rtems-a2e0e6e59e4ac44b7495a215731dc0ea1c0f20e1.tar.bz2 | |
LIBPCI: fixed RES2DEV in pci/cfg.h
Diffstat (limited to 'cpukit/libpci')
| -rw-r--r-- | cpukit/libpci/pci/cfg.h | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/cpukit/libpci/pci/cfg.h b/cpukit/libpci/pci/cfg.h index 18c48db5c2..8869a512af 100644 --- a/cpukit/libpci/pci/cfg.h +++ b/cpukit/libpci/pci/cfg.h @@ -146,9 +146,12 @@ struct pci_res { uint32_t end; }; -/* Get Device from resource pointer */ +/* Get Device from resource pointer. bar is the index of the pci_dev.resources + * array and used to get the device base address of which the resource is + * associated with. + */ #define RES2DEV(res) ((struct pci_dev *) \ - ((void *)res - (res->bar * (sizeof(struct pci_res))))) + ((uintptr_t)res - (uintptr_t)(res->bar * (sizeof(struct pci_res))))) /* Device flags */ #define PCI_DEV_BRIDGE 0x01 /* Device is a Bridge (struct pci_bus) */ |