Re: [PATCH v1 10/38] arm64/sve: Generalise vector length configuration prctl() for SME

On Thu, 30 Sep 2021 19:11:16 +0100 Mark Brown broonie@kernel.org wrote:

In preparation for adding SME support update the bulk of the implementation for the vector length configuration prctl() calls to be independent of vector type.

Signed-off-by: Mark Brown broonie@kernel.org

And let the trivial continue (which is just a reflection of the fact I don't have enough of a grasp on this to find anything substantial - or there is nothing there to find :)

...

/*

• * Clamp to the maximum vector length that VL-agnostic SVE code can
  

• * work with.  A flag may be assigned in the future to allow setting
  

• * of larger vector lengths without confusing older software.
  

• * Clamp to the maximum vector length that VL-agnostic code
  

• * can work with.  A flag may be assigned in the future to
  

• * allow setting of larger vector lengths without confusing
  

• * older software.
  

Why the oddly short wrapping at sub 70 chars?

*/

• if (vl > SVE_VL_ARCH_MAX)

• vl = SVE_VL_ARCH_MAX;
  

• if (vl > VL_ARCH_MAX)

• vl = VL_ARCH_MAX;