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From:   Michael Ellerman <patch-notifications@ellerman.id.au>
To:     Paul Mackerras <paulus@samba.org>,
        Christophe Leroy <christophe.leroy@csgroup.eu>,
        Michael Ellerman <mpe@ellerman.id.au>,
        Steven Rostedt <rostedt@goodmis.org>,
        Ingo Molnar <mingo@redhat.com>,
        Benjamin Herrenschmidt <benh@kernel.crashing.org>
Cc:     "Naveen N . Rao" <naveen.n.rao@linux.vnet.ibm.com>,
        linux-kernel@vger.kernel.org, linuxppc-dev@lists.ozlabs.org
In-Reply-To: <ff535e86d3a69376a6d89168511d4e403835f18b.1644949750.git.christophe.leroy@csgroup.eu>
References: <ff535e86d3a69376a6d89168511d4e403835f18b.1644949750.git.christophe.leroy@csgroup.eu>
Subject: Re: [PATCH v1 1/4] powerpc/ftrace: Also save r1 in ftrace_caller()
Message-Id: <164622488126.2052779.3499748574130781194.b4-ty@ellerman.id.au>
Date:   Wed, 02 Mar 2022 23:41:21 +1100
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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