]> git.baikalelectronics.ru Git - kernel.git/commit
powerpc/ftrace: Move stack setup and teardown code into ftrace_graph_caller()
authorNaveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
Wed, 19 Apr 2017 12:52:23 +0000 (18:22 +0530)
committerMichael Ellerman <mpe@ellerman.id.au>
Sun, 23 Apr 2017 10:32:24 +0000 (20:32 +1000)
commitb65c8c65bc0ec596db3c7b58b733119612d0885f
tree81366b9ea46323f532a7d74565899b013fa7d58d
parent21171be230a7702ac71499e4cf86d5fe1935b8bb
powerpc/ftrace: Move stack setup and teardown code into ftrace_graph_caller()

Move the stack setup and teardown code into ftrace_graph_caller(). This way, we
don't incur the cost of setting it up unless function graph is enabled for this
function.

Also, remove the extraneous LR restore code after the function graph stub. LR
has previously been restored and neither livepatch_handler() nor
ftrace_graph_caller() return back here.

Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
[mpe: Drop bad change to non-mprofile-kernel version of ftrace_graph_caller]
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
arch/powerpc/kernel/entry_64.S