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authorDavid S. Miller <davem@davemloft.net>2009-09-04 03:38:54 -0700
committerDavid S. Miller <davem@davemloft.net>2009-09-04 03:39:45 -0700
commitbd4352cadfacb9084c97c853b025fac010266c26 (patch)
treeef54f0801dce4822df71cca587421446ad259ebd /arch/sparc/prom/misc_64.c
parentsparc64: Kill spurious NMI watchdog triggers by increasing limit to 30 seconds. (diff)
downloadlinux-dev-bd4352cadfacb9084c97c853b025fac010266c26.tar.xz
linux-dev-bd4352cadfacb9084c97c853b025fac010266c26.zip
sparc64: Fix bootup with mcount in some configs.
Functions invoked early when booting up a cpu can't use tracing because mcount requires a valid 'current_thread_info()' and TLB mappings to be setup. The code path of sun4v_register_mondo_queues --> register_one_mondo is one such case. sun4v_register_mondo_queues already has the necessary 'notrace' annotation, but register_one_mondo does not. Normally register_one_mondo is inlined so the bug doesn't trigger, but with some config/compiler combinations, it won't be so we must properly mark it notrace. While we're here, add 'notrace' annoations to prom_printf and prom_halt so that early error handling won't have the same problem. Reported-by: Alexander Beregalov <a.beregalov@gmail.com> Reported-by: Leif Sawyer <lsawyer@gci.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'arch/sparc/prom/misc_64.c')
-rw-r--r--arch/sparc/prom/misc_64.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/sparc/prom/misc_64.c b/arch/sparc/prom/misc_64.c
index eedffb4fec2d..39fc6af21b7c 100644
--- a/arch/sparc/prom/misc_64.c
+++ b/arch/sparc/prom/misc_64.c
@@ -88,7 +88,7 @@ void prom_cmdline(void)
/* Drop into the prom, but completely terminate the program.
* No chance of continuing.
*/
-void prom_halt(void)
+void notrace prom_halt(void)
{
#ifdef CONFIG_SUN_LDOMS
if (ldom_domaining_enabled)