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parisc: Static initialization of spinlocks in perf and unwind code

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While testing UBSAN I saw this BUG:
 BUG: spinlock bad magic on CPU#0, swapper/0
in unwind code. Let's avoid that by static initialization.

Signed-off-by: Helge Deller <deller@gmx.de>
This commit is contained in:
Helge Deller
2017-08-04 23:54:19 +02:00
parent 54ac8fcbd6
commit 76cffeb6cc
2 changed files with 2 additions and 6 deletions
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4
arch/parisc/kernel/perf.c
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@@ -69,7 +69,7 @@ struct rdr_tbl_ent {
static int perf_processor_interface __read_mostly = UNKNOWN_INTF;
static int perf_enabled __read_mostly;
static spinlock_t perf_lock;
static DEFINE_SPINLOCK(perf_lock);
struct parisc_device *cpu_device __read_mostly;
/* RDRs to write for PCX-W */
@@ -533,8 +533,6 @@ static int __init perf_init(void)
/* Patch the images to match the system */
perf_patch_images();
spin_lock_init(&perf_lock);
/* TODO: this only lets us access the first cpu.. what to do for SMP? */
cpu_device = per_cpu(cpu_data, 0).dev;
printk("Performance monitoring counters enabled for %s\n",