On Tue, 2019-09-10 at 15:38 +, David Laight wrote:
> From: Arnd Bergmann
> > Sent: 10 September 2019 09:15
> ...
> > > I am not sure how this would work, since the format parameters
> > > can
> > > changes depending on the FW string and the specific traces.
> >
> > Ah, so the format string com
From: Arnd Bergmann
> Sent: 10 September 2019 09:15
...
> > I am not sure how this would work, since the format parameters can
> > changes depending on the FW string and the specific traces.
>
> Ah, so the format string comes from the firmware? I didn't look
> at the code in enough detail to under
On Mon, Sep 9, 2019 at 11:53 PM Saeed Mahameed wrote:
> On Mon, 2019-09-09 at 22:18 +0200, Arnd Bergmann wrote:
> > To do this right, a better approach may be to just rely on ftrace,
> > storing
> > the (pointer to the) format string and the arguments in the buffer
> > without
> > creating a stri
On Mon, 2019-09-09 at 22:18 +0200, Arnd Bergmann wrote:
> On Mon, Sep 9, 2019 at 9:39 PM Saeed Mahameed
> wrote:
> > On Fri, 2019-09-06 at 17:11 +0200, Arnd Bergmann wrote:
> > > --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
> > > +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag
On Mon, Sep 9, 2019 at 9:39 PM Saeed Mahameed wrote:
> On Fri, 2019-09-06 at 17:11 +0200, Arnd Bergmann wrote:
> > --- a/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
> > +++ b/drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c
> > @@ -557,16 +557,16 @@ static void mlx5_tracer_pri
On Fri, 2019-09-06 at 17:11 +0200, Arnd Bergmann wrote:
> It's generally not ok to put a 512 byte buffer on the stack, as
> kernel
> stack is a scarce resource:
>
> drivers/net/ethernet/mellanox/mlx5/core/diag/fw_tracer.c:660:13:
> error: stack frame size of 1032 bytes in function
> 'mlx5_fw_trace
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