* Alex Williamson (alex.williamson@xxxxxxxxxx) wrote: > The PCI sysfs ROM interface requires an enabling write to access > the ROM image, but the default file mode is 0400. The original > proposed patch adding sysfs ROM support was a true read-only > interface, with the enabling bit coming in as a feature request. > I suspect it was simply an oversight that the file mode didn't > get updated to match the API. This is often not an issue given normal root capabilities, but once we strip those capabilities, the default 0400 causes O_RDWR to fail. As Alex said, given the only way to use the file is to write to it first, making it writable makes sense. > Signed-off-by: Alex Williamson <alex.williamson@xxxxxxxxxx> Acked-by: Chris Wright <chrisw@xxxxxxxxxx> -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
