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Mark Rutland eb1a68a00c arm64: fpsimd: Use opaque type for SME state ...

As the SME state size can vary at runtime, we don't have a concrete type
for the in-memory SME state, and pass this around using a pointer to
void.

Using pointer to void means that it's very easy to introduce errors that
cannot be caught by the compiler (e.g. as 'void **' can be assigned to
'void *').

Improve this by adding an opaque 'struct arm64_sme_state', and
consistently passing a pointer to this.

Signed-off-by: Mark Rutland <mark.rutland@arm.com>
Reviewed-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Vladimir Murzin <vladimir.murzin@arm.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Fuad Tabba <tabba@google.com>
Cc: James Morse <james.morse@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Cc: Oliver Upton <oupton@kernel.org>
Cc: Will Deacon <will@kernel.org>
Signed-off-by: Will Deacon <will@kernel.org>

2026-06-03 16:50:49 +01:00

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