for arm cross-compiling, in function __reserve_bp_slot:
slots.flexible may be used without initializing.
slots.flexible is not initialized when define it.
it is as a parameter passed to fetch_bp_busy_slots.
in function fetch_bp_busy_slots:
if bp->cpu < 0
slots->flexible will be used for comparing, firstly.
that will cause issue.
building:
make EXTRA_CFLAGS=-W ARCH=arm
...
linux/kernel/events/hw_breakpoint.c:300:
warning: missing initializer
linux/kernel/events/hw_breakpoint.c:300:
warning: (near initialization for 'slots.flexible')
...
Signed-off-by: Chen Gang <gang.c...@asianux.com>
---
kernel/events/hw_breakpoint.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)
diff --git a/kernel/events/hw_breakpoint.c b/kernel/events/hw_breakpoint.c
index fe8a916..ef69215 100644
--- a/kernel/events/hw_breakpoint.c
+++ b/kernel/events/hw_breakpoint.c
@@ -297,7 +297,7 @@ __weak void arch_unregister_hw_breakpoint(struct perf_event
*bp)
*/
static int __reserve_bp_slot(struct perf_event *bp)
{
- struct bp_busy_slots slots = {0};
+ struct bp_busy_slots slots = {0, 0};
enum bp_type_idx type;
int weight;
--
1.7.7.6
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