Re: [PATCH] frv: fix build failure

2017-12-06 Thread Vineet Gupta 

On 12/03/2017 02:32 PM, Sudip Mukherjee wrote:

On Mon, Nov 27, 2017 at 10:25:16AM -0800, Vineet Gupta wrote:

+CC linux-arch, Arnd

On 11/23/2017 09:17 AM, Alexey Brodkin wrote:

Hi Sudip,

On Tue, 2017-11-21 at 22:10 +, Sudip Mukherjee wrote:





I understand the case/need for adding a weak/common abort() as a
quick fix for handling such cases, but perhaps we should not and
instead fix the rootcause. In this specific case, Claudiu mentioned
that gcc was generating abort due to something like this (flagging a
possible divide by zero due to
-fno-isolate-erroneous-paths-dereference.

a;

fn1() {
   switch (a)
   case 0:
   return 1 / a;
}

Sudeep can you confirm that removing this hacking FRV build to not
have this toggle fixes the abort issue.

So the offending code needs to be fixed as in the end when that code
path is taken system is hosed.


The above case that you mentioned is indeed the case here.
mpihelp_divrem() in lib/mpi/mpih-div.c has this same divide by zero case.

So, what should be the actual fix here?


To remove the divide by zero.

Or atleast have a __weak abort() defined in common code so all arches benefit from 
it !


-Vineet


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Re: [PATCH 0/4] ARC: Set initial core pll output frequency via DTS

2017-12-06 Thread Vineet Gupta 

On 11/27/2017 10:56 AM, Eugeniy Paltsev wrote:

Set initial core pll output frequency on HSDK and AXS103 via
"assigned-clock-rates" property in device tree.
It will be applied at the core pll driver probing.


Can you repost - CC'ing Stephen boyd and RobH ?

-Vineet



Eugeniy Paltsev (4):
   ARC: [plat-hsdk]: Set initial core pll output frequency
   ARC: [plat-hsdk]: Get rid of core pll frequency set in platform code
   ARC: [plat-axs103]: Set initial core pll output frequency
   ARC: [plat-axs103] refactor the quad core DT quirk code

  arch/arc/boot/dts/axc003.dtsi |  3 +++
  arch/arc/boot/dts/axc003_idu.dtsi |  3 +++
  arch/arc/boot/dts/hsdk.dts|  3 +++
  arch/arc/plat-axs10x/axs10x.c | 18 -
  arch/arc/plat-hsdk/platform.c | 42 ---
  5 files changed, 17 insertions(+), 52 deletions(-)




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