Commit a81ce79b authored by Linus Torvalds's avatar Linus Torvalds

Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 ptrace fix from Catalin Marinas.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: ptrace: avoid using HW_BREAKPOINT_EMPTY for disabled events
parents df36ac1b cdc27c27
...@@ -214,31 +214,29 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type, ...@@ -214,31 +214,29 @@ static int ptrace_hbp_fill_attr_ctrl(unsigned int note_type,
{ {
int err, len, type, disabled = !ctrl.enabled; int err, len, type, disabled = !ctrl.enabled;
if (disabled) { attr->disabled = disabled;
len = 0; if (disabled)
type = HW_BREAKPOINT_EMPTY; return 0;
} else {
err = arch_bp_generic_fields(ctrl, &len, &type); err = arch_bp_generic_fields(ctrl, &len, &type);
if (err) if (err)
return err; return err;
switch (note_type) { switch (note_type) {
case NT_ARM_HW_BREAK: case NT_ARM_HW_BREAK:
if ((type & HW_BREAKPOINT_X) != type) if ((type & HW_BREAKPOINT_X) != type)
return -EINVAL;
break;
case NT_ARM_HW_WATCH:
if ((type & HW_BREAKPOINT_RW) != type)
return -EINVAL;
break;
default:
return -EINVAL; return -EINVAL;
} break;
case NT_ARM_HW_WATCH:
if ((type & HW_BREAKPOINT_RW) != type)
return -EINVAL;
break;
default:
return -EINVAL;
} }
attr->bp_len = len; attr->bp_len = len;
attr->bp_type = type; attr->bp_type = type;
attr->disabled = disabled;
return 0; return 0;
} }
......
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