Since searchdir() uses getfssec() to read the directory it needs to set
file_bytesleft. Else it loops forever if you have a large directory (and/or
rock ridge on).

Don't compile rosh.lnx by default.  It causes unnecessary dependencies
on the host system.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Impact: Improving display

Removing useless space

Impact: cleaning code

Using for_each_pci_func3 instead of for_each_pci_func + pci_mkaddr

Add pci_for_each_func3() iterator, which produces an address in
addition to the device pointer.

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>

Impact: Prevent hard freeze when having many PCI devices

A user reported that calling gather_additional_pci_config() when many
PCI devices exists on a host could lead to a complete freeze.
This patch remove some useless code and use for_each_pci_func() instead.
This prevent useless memory allocation.

Document additional changes since 3.74.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>

Using "lret $2" to return from an interrupt causes interrupts to be
disabled in the calling program, since the INT instruction will have
disabled interrupts.  Instead, patch CF on the stack and use iret to
return.

Interestingly, the original PC BIOS had this bug in at least one
place.

Signed-off-by: H. Peter Anvin <hpa@zytor.com>