linux-toradex.git/arch/x86/lib/copy_page_64.S, branch v3.2.43 Linux kernel for Apalis and Colibri modules x86: Make alternative instruction pointers relative 2011-07-13T18:22:56+00:00 Andy Lutomirski luto@mit.edu 2011-07-13T13:24:10+00:00 59e97e4d6fbcd5b74a94cb48bcbfc6f8478a5e93 This save a few bytes on x86-64 and means that future patches can apply alternatives to unrelocated code. Signed-off-by: Andy Lutomirski <luto@mit.edu> Link: http://lkml.kernel.org/r/ff64a6b9a1a3860ca4a7b8b6dc7b4754f9491cd7.1310563276.git.luto@mit.edu Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> 
This save a few bytes on x86-64 and means that future patches can
apply alternatives to unrelocated code.

Signed-off-by: Andy Lutomirski <luto@mit.edu>
Link: http://lkml.kernel.org/r/ff64a6b9a1a3860ca4a7b8b6dc7b4754f9491cd7.1310563276.git.luto@mit.edu
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
x86, alternatives: Use 16-bit numbers for cpufeature index 2010-07-07T17:36:28+00:00 H. Peter Anvin hpa@linux.intel.com 2010-06-10T00:10:43+00:00 83a7a2ad2a9173dcabc05df0f01d1d85b7ba1c2c We already have cpufeature indicies above 255, so use a 16-bit number for the alternatives index. This consumes a padding field and so doesn't add any size, but it means that abusing the padding field to create assembly errors on overflow no longer works. We can retain the test simply by redirecting it to the .discard section, however. [ v3: updated to include open-coded locations ] Signed-off-by: H. Peter Anvin <hpa@linux.intel.com> LKML-Reference: <tip-f88731e3068f9d1392ba71cc9f50f035d26a0d4f@git.kernel.org> Signed-off-by: H. Peter Anvin <hpa@zytor.com> 
We already have cpufeature indicies above 255, so use a 16-bit number
for the alternatives index.  This consumes a padding field and so
doesn't add any size, but it means that abusing the padding field to
create assembly errors on overflow no longer works.  We can retain the
test simply by redirecting it to the .discard section, however.

[ v3: updated to include open-coded locations ]

Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
LKML-Reference: <tip-f88731e3068f9d1392ba71cc9f50f035d26a0d4f@git.kernel.org>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
x86_64: move lib 2007-10-11T09:17:08+00:00 Thomas Gleixner tglx@linutronix.de 2007-10-11T09:17:08+00:00 185f3d38900f750a4566f87cde6a178f3595a115 Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@elte.hu> 
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>