On 25/02/16 01:28, Michael Ellerman wrote:
> Signed-off-by: Michael Ellerman <m...@ellerman.id.au>
> ---
>  arch/powerpc/kernel/entry_64.S | 8 ++++++++
>  1 file changed, 8 insertions(+)
>
> Squash.
>
> diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
> index 2a7313cfbc7d..9e77a2c8f218 100644
> --- a/arch/powerpc/kernel/entry_64.S
> +++ b/arch/powerpc/kernel/entry_64.S
> @@ -1237,6 +1237,11 @@ _GLOBAL(ftrace_graph_caller)
>       std     r5, 64(r1)
>       std     r4, 56(r1)
>       std     r3, 48(r1)
> +
> +     /* Save callee's TOC in the ABI compliant location */
> +     std     r2, 24(r1)
R2_STACK_OFFSET for readability?
> +     ld      r2, PACATOC(r13)        /* get kernel TOC in r2 */
> +
>       mfctr   r4              /* ftrace_caller has moved local addr here */
>       std     r4, 40(r1)
>       mflr    r3              /* ftrace_caller has restored LR from stack */
> @@ -1262,6 +1267,9 @@ _GLOBAL(ftrace_graph_caller)
>       ld      r4, 56(r1)
>       ld      r3, 48(r1)
>  
> +     /* Restore callee's TOC */
> +     ld      r2, 24(r1)
> +
>       addi    r1, r1, 112
>       mflr    r0
>       std     r0, LRSAVE(r1)

Reviewed-by: Balbir Singh <bsinghar...@gmail.com>
Balbir Singh.
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