Re: [Xen-devel] [PATCH v2 for 4.5] arm32: fix build after 063188f4b3

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 14.10.14 at 17:52, <julien.grall@xxxxxxxxxx> wrote:
> "xen: arm: Add support for the Exynos secure firmware" introduced code
> assuming that exynos_smc() would get called with arguments in certain
> registers. While the "noinline" attribute guarantees the function to
> not get inlined, it does not guarantee that all arguments arrive in the
> assumed registers: gcc's interprocedural analysis can result in clone
> functions to be created where some of the incoming arguments (commonly
> when they have constant values) get replaced by putting in place the
> respective values inside the clone.
> 
> Xen contains in multiple place of this SMC function: consolidate the 
> function
> in a single place and write it in assembly.
> 
> Signed-off-by: Julien Grall <julien.grall@xxxxxxxxxx>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
> 
> ---
> This is a fix for Xen 4.5 to compile the hypervisor with GCC 4.9.1, used by
> Fedora & co.
> 
> Jan: I kept your Signed-off-by for the commit message.
> 
> Changes in v2:
>     - Write the SMC call in assembly
>     - Consolidate the code in a single place

To me it very much looks like (not just because of the subject) you
sent v2 again, rather than v3.

Jan


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