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| author | Dave Airlie <airlied@redhat.com> | 2009-08-06 09:39:01 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2009-08-06 09:41:09 +1000 |
| commit | 57cf6f1f428ab73fb2a88c39c694e7d14c2c96c6 (patch) | |
| tree | c9298f3e6ade499b796764518005e0586a59dfb1 /src | |
| parent | 7b7999a302c70f1ad9a5c8fc7517e24ab95c3a95 (diff) | |
| download | libpciaccess-57cf6f1f428ab73fb2a88c39c694e7d14c2c96c6.tar.gz libpciaccess-57cf6f1f428ab73fb2a88c39c694e7d14c2c96c6.tar.bz2 libpciaccess-57cf6f1f428ab73fb2a88c39c694e7d14c2c96c6.zip | |
pciaccess: make linux rom reading fallback optional
On kernels which have ROM files, the boot VGA rom file
will contain the 0xc0000 file anyways. If another card
is missing a rom file there is no need for this.
This is fallback is disabled by default, on the premise
that distro shipping this new a pciaccess will be running
on kernels with working rom support which is been upstream
for a long time
Diffstat (limited to 'src')
| -rw-r--r-- | src/linux_sysfs.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/src/linux_sysfs.c b/src/linux_sysfs.c index 65e1cf6..02fbd13 100644 --- a/src/linux_sysfs.c +++ b/src/linux_sysfs.c @@ -327,10 +327,15 @@ pci_device_linux_sysfs_read_rom( struct pci_device * dev, void * buffer ) fd = open( name, O_RDWR ); if ( fd == -1 ) { +#ifdef LINUX_ROM /* If reading the ROM using sysfs fails, fall back to the old * /dev/mem based interface. + * disable this for newer kernels using configure */ return pci_device_linux_devmem_read_rom(dev, buffer); +#else + return errno; +#endif } |