linux-kernel - Re: [PATCH v1 1/4] powerpc/ftrace: Also save r1 in ftrace

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Date:   Wed, 02 Mar 2022 23:41:21 +1100
From:   Michael Ellerman <patch-notifications@...erman.id.au>
To:     Paul Mackerras <paulus@...ba.org>,
        Christophe Leroy <christophe.leroy@...roup.eu>,
        Michael Ellerman <mpe@...erman.id.au>,
        Steven Rostedt <rostedt@...dmis.org>,
        Ingo Molnar <mingo@...hat.com>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc:     "Naveen N . Rao" <naveen.n.rao@...ux.vnet.ibm.com>,
        linux-kernel@...r.kernel.org, linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH v1 1/4] powerpc/ftrace: Also save r1 in ftrace_caller()

On Tue, 15 Feb 2022 19:31:22 +0100, Christophe Leroy wrote:
> Also save r1 in ftrace_caller()
> 
> r1 is needed during unwinding when the function_graph tracer
> is active.
> 
> 

Applied to powerpc/next.

[1/4] powerpc/ftrace: Also save r1 in ftrace_caller()
      https://git.kernel.org/powerpc/c/34d8dac807f0ee3dc42ab45bdb284a3caf2b5ed1
[2/4] powerpc/ftrace: Add recursion protection in prepare_ftrace_return()
      https://git.kernel.org/powerpc/c/df45a55788286c541449d82ee09fef3ac5ff77a1
[3/4] powerpc/ftrace: Have arch_ftrace_get_regs() return NULL unless FL_SAVE_REGS is set
      https://git.kernel.org/powerpc/c/fc75f87337983229b7355d6b77f30fb6e7f359ee
[4/4] powerpc/ftrace: Style cleanup in ftrace_mprofile.S
      https://git.kernel.org/powerpc/c/76b372814b088aeb76f0f753d968c8aa6d297f2a

cheers