robin.thoni/ipxe - git rthoni.com

Michael Brown 19d3e966d9 [pcnet32] Eliminate redundant register read The value of ( ( x & 0x0c00 ) \| 0x0c00 ) is always 0x0c00 regardless of the value of x, and so the read_csr() is redundant. (There are no read side effects for this register, according to the datasheet.) This line of code originated in Linux kernel 2.3.19pre1 as a->write_csr(ioaddr, 80, a->read_csr(ioaddr, 80) \| 0x0c00); and was modified in kernel 2.3.41pre4 to read a->write_csr(ioaddr, 80, (a->read_csr(ioaddr, 80) & 0x0C00) \| 0x0c00); In the absence of commit messages, the intention of the code is unclear. However, the logic resulting in a fixed value of 0x0c00 has remained unaltered for over 17 years, and can probably be assumed to have the correct overall result. Signed-off-by: Michael Brown <mcb30@ipxe.org>		8 vuotta sitten
contrib	[coverity] Add Coverity user model	8 vuotta sitten
src	[pcnet32] Eliminate redundant register read	8 vuotta sitten
.travis.yml	[travis] Integrate with Coverity Scan	8 vuotta sitten
COPYING	[legal] Update GPLv2 licence text	10 vuotta sitten
COPYING.GPLv2	[legal] Update GPLv2 licence text	10 vuotta sitten
COPYING.UBDL	[legal] Add support for the Unmodified Binary Distribution Licence	10 vuotta sitten
README	[doc] Re-add README file	15 vuotta sitten

iPXE README File

Quick start guide:

   cd src
   make

For any more detailed instructions, see http://ipxe.org