| From | Andi Kleen <> | Subject | [PATCH] [191/275] x86: Emit "mem=nopentium ignored" warning when not supported | Date | Wed, 30 Mar 2011 14:07:14 -0700 (PDT) |
| |
2.6.35-longterm review patch. If anyone has any objections, please let me know.
------------------ From: Kamal Mostafa <kamal@canonical.com>
commit 9a6d44b9adb777ca9549e88cd55bd8f2673c52a2 upstream.
Emit warning when "mem=nopentium" is specified on any arch other than x86_32 (the only that arch supports it).
Signed-off-by: Kamal Mostafa <kamal@canonical.com> Signed-off-by: Andi Kleen <ak@linux.intel.com> BugLink: http://bugs.launchpad.net/bugs/553464 Cc: Yinghai Lu <yinghai@kernel.org> Cc: Len Brown <len.brown@intel.com> Cc: Rafael J. Wysocki <rjw@sisk.pl> LKML-Reference: <1296783486-23033-2-git-send-email-kamal@canonical.com> Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
--- arch/x86/kernel/e820.c | 7 +++++-- 1 file changed, 5 insertions(+), 2 deletions(-)
Index: linux-2.6.35.y/arch/x86/kernel/e820.c =================================================================== --- linux-2.6.35.y.orig/arch/x86/kernel/e820.c 2011-03-29 23:03:02.252242542 -0700 +++ linux-2.6.35.y/arch/x86/kernel/e820.c 2011-03-29 23:03:02.270242081 -0700 @@ -980,12 +980,15 @@ if (!p) return -EINVAL; -#ifdef CONFIG_X86_32 if (!strcmp(p, "nopentium")) { +#ifdef CONFIG_X86_32 setup_clear_cpu_cap(X86_FEATURE_PSE); return 0; - } +#else + printk(KERN_WARNING "mem=nopentium ignored! (only supported on x86_32)\n"); + return -EINVAL; #endif + } userdef = 1; mem_size = memparse(p, &p);
|