[PATCH] powerpc/radix: Remove trace_tlbie call from radix__flush_tlb_all

[Balbir Singh]

On Thu, Nov 30, 2017 at 8:05 PM, Mahesh J Salgaonkar
<mahesh at linux.vnet.ibm.com> wrote:
> From: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
>
> radix__flush_tlb_all() is called only in kexec path in real mode and any
> tracepoints at this stage will make kexec to fail if enabled.
>
> To verify enable tlbie trace before kexec.
>
> $ echo 1 > /sys/kernel/debug/tracing/events/powerpc/tlbie/enable
> == kexec into new kernel and kexec fails.
>
> Fix this by not calling trace_tlbie from radix__flush_tlb_all().
>
> Fixes: 0428491cba92 ("powerpc/mm: Trace tlbie(l) instructions")
> Signed-off-by: Mahesh Salgaonkar <mahesh at linux.vnet.ibm.com>
> ---

Acked-by: Balbir Singh <bsingharora at gmail.com>