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Subject[PATCH 04/15] powerpc/watchpoint/ptrace: Return actual num of available watchpoints
Date
User can ask for num of available watchpoints(dbginfo.num_data_bps)
using ptrace(PPC_PTRACE_GETHWDBGINFO). Return actual number of
available watchpoints on the machine rather than hardcoded 1.

Signed-off-by: Ravi Bangoria <ravi.bangoria@linux.ibm.com>
---
arch/powerpc/kernel/ptrace.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/ptrace.c b/arch/powerpc/kernel/ptrace.c
index 25c0424e8868..dd46e174dbe7 100644
--- a/arch/powerpc/kernel/ptrace.c
+++ b/arch/powerpc/kernel/ptrace.c
@@ -3074,7 +3074,7 @@ long arch_ptrace(struct task_struct *child, long request,
#else /* !CONFIG_PPC_ADV_DEBUG_REGS */
dbginfo.num_instruction_bps = 0;
if (ppc_breakpoint_available())
- dbginfo.num_data_bps = 1;
+ dbginfo.num_data_bps = nr_wp_slots();
else
dbginfo.num_data_bps = 0;
dbginfo.num_condition_regs = 0;
--
2.21.1
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