Gitweb:
http://git.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=6cda2e90588ba2f70543abf68b4815e10c86aef1
Commit: 6cda2e90588ba2f70543abf68b4815e10c86aef1
Parent: a680ae9bdd8746ea4338e843db388fa67f1d1920
Author: Michael Hennerich <[EMAIL PROTECTED]>
AuthorDate: Sat Feb 2 15:10:51 2008 +0800
Committer: Bryan Wu <[EMAIL PROTECTED]>
CommitDate: Sat Feb 2 15:10:51 2008 +0800
[Blackfin] arch: Fix BUG - Enable ISP1362 driver to work ok with BF561
This fixes a bug (zero pointer access) only seen on BF561, during USB
Mass Storage/SCSI Host initialization.
It appears to be related to registering a none existing CPU
Signed-off-by: Michael Hennerich <[EMAIL PROTECTED]>
Signed-off-by: Bryan Wu <[EMAIL PROTECTED]>
---
arch/blackfin/kernel/setup.c | 18 ++++++++++--------
1 files changed, 10 insertions(+), 8 deletions(-)
diff --git a/arch/blackfin/kernel/setup.c b/arch/blackfin/kernel/setup.c
index 2f156bf..aca5e6e 100644
--- a/arch/blackfin/kernel/setup.c
+++ b/arch/blackfin/kernel/setup.c
@@ -48,6 +48,8 @@
#include <asm/fixed_code.h>
#include <asm/early_printk.h>
+static DEFINE_PER_CPU(struct cpu, cpu_devices);
+
u16 _bfin_swrst;
unsigned long memory_start, memory_end, physical_mem_end;
@@ -763,15 +765,15 @@ void __init setup_arch(char **cmdline_p)
static int __init topology_init(void)
{
-#if defined (CONFIG_BF561)
- static struct cpu cpu[2];
- register_cpu(&cpu[0], 0);
- register_cpu(&cpu[1], 1);
+ int cpu;
+
+ for_each_possible_cpu(cpu) {
+ struct cpu *c = &per_cpu(cpu_devices, cpu);
+
+ register_cpu(c, cpu);
+ }
+
return 0;
-#else
- static struct cpu cpu[1];
- return register_cpu(cpu, 0);
-#endif
}
subsys_initcall(topology_init);
-
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