From: Michael Ellerman <patch-notifications@ellerman.id.au>
To: "Naveen N. Rao" <naveen.n.rao@linux.vnet.ibm.com>
Cc: linuxppc-dev@lists.ozlabs.org
Subject: Re: [v3] powerpc: Add support for function error injection
Date: Mon, 22 Oct 2018 20:34:43 +1100 (AEDT) [thread overview]
Message-ID: <42drvm4VXxz9sD3@ozlabs.org> (raw)
In-Reply-To: <20180607095202.29189-1-naveen.n.rao@linux.vnet.ibm.com>
On Thu, 2018-06-07 at 09:52:02 UTC, "Naveen N. Rao" wrote:
> We implement regs_set_return_value() and override_function_with_return()
> for this purpose.
>
> On powerpc, a return from a function (blr) just branches to the location
> contained in the link register. So, we can just update pt_regs rather
> than redirecting execution to a dummy function that returns.
>
> Signed-off-by: Naveen N. Rao <naveen.n.rao@linux.vnet.ibm.com>
> Reviewed-by: Samuel Mendoza-Jonas <sam@mendozajonas.com>
Applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/7cd01b08d35f1b7d55686ed8cd57c9
cheers
prev parent reply other threads:[~2018-10-22 9:42 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-06-07 9:52 [PATCH v3] powerpc: Add support for function error injection Naveen N. Rao
2018-06-08 6:52 ` Samuel Mendoza-Jonas
2018-10-22 9:34 ` Michael Ellerman [this message]
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