AcoSail/kernel_optimize_test
8
0
Fork 0
forked from luck/tmp_suning_uos_patched
Code Pull Requests Activity

trace/kprobes: Add back warning about offset in return probes

Browse Source 
Let's not remove the warning about offsets and return probes when the
offset is invalid.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu <mhiramat@kernel.org>
Acked-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Cc: Ananth N Mavinakayanahalli <ananth@linux.vnet.ibm.com>
Cc: Michael Ellerman <mpe@ellerman.id.au>
Cc: linuxppc-dev@lists.ozlabs.org
Link: http://lkml.kernel.org/r/20170227115204.00f92846@gandalf.local.home
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Steven Rostedt (VMware) 2017-02-27 11:52:04 -05:00 committed by Arnaldo Carvalho de Melo
parent f1c4d1ad39
commit d0e02579c2
1 changed files with 5 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
kernel/trace/trace_kprobe.c
View File

@ -695,6 +695,11 @@ static int create_trace_kprobe(int argc, char **argv)
pr_info("Failed to parse symbol.\n");
return ret;
}
if (offset && is_return &&
!arch_function_offset_within_entry(offset)) {
pr_info("Given offset is not valid for return probe.\n");
return -EINVAL;
}
}
argc -= 2; argv += 2;