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ftrace/x86: Update i386 call to prepare_ftrace_return() 

The parameters for prepare_ftrace_return() used by the function graph
tracer were swapped to simplify the code on x86_64. But i386 function
graph trampoline also calls this function, and it did not have its
parameters swapped.

Link: http://lkml.kernel.org/r/20141210231732.GA24163@wfg-t540p.sh.intel.com

Reported-by: Fengguang Wu <fengguang.wu@intel.com>
Tested-by: Fengguang Wu <fengguang.wu@intel.com>
Fixes: 6a06bdbf7f "ftrace/fgraph/x86: Have prepare_ftrace_return() take ip as first parameter"
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
hifive-unleashed-5.1
Steven Rostedt (Red Hat) 2014-12-10 23:49:49 -05:00 committed by Steven Rostedt
parent 3558a5ac50
commit f823b37ba6
1 changed files with 3 additions and 3 deletions
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6
arch/x86/kernel/entry_32.S
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@ -1192,10 +1192,10 @@ ENTRY(ftrace_graph_caller)
pushl %eax
pushl %ecx
pushl %edx
movl 0xc(%esp), %edx
lea 0x4(%ebp), %eax
movl 0xc(%esp), %eax
lea 0x4(%ebp), %edx
movl (%ebp), %ecx
subl $MCOUNT_INSN_SIZE, %edx
subl $MCOUNT_INSN_SIZE, %eax
call prepare_ftrace_return
popl %edx
popl %ecx