diff options
| author | Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com> | 2016-11-22 14:55:59 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2017-02-15 20:02:25 +1100 |
| commit | c21a493a2b44650707d06741601894329486f2ad (patch) | |
| tree | bb69261a8546ba22975b07f47aff14b1b6414978 /drivers/acpi/acpi_processor.c | |
| parent | 36b390fd624a7f3a64bda5de54fa58ebcf956ffc (diff) | |
powerpc/xmon: Fix data-breakpoint
Currently xmon data-breakpoint feature is broken.
Whenever there is a watchpoint match occurs, hw_breakpoint_handler will
be called by do_break via notifier chains mechanism. If watchpoint is
registered by xmon, hw_breakpoint_handler won't find any associated
perf_event and returns immediately with NOTIFY_STOP. Similarly, do_break
also returns without notifying to xmon.
Solve this by returning NOTIFY_DONE when hw_breakpoint_handler does not
find any perf_event associated with matched watchpoint, rather than
NOTIFY_STOP, which tells the core code to continue calling the other
breakpoint handlers including the xmon one.
Cc: stable@vger.kernel.org
Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'drivers/acpi/acpi_processor.c')
0 files changed, 0 insertions, 0 deletions