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The current implementation of platform MSI caches the msi_desc pointer in irq_data::handler_data. This is a bit silly, as we also have irq_data::msi_desc, which is perfectly valid. Remove the useless assignment and simplify the whole flow. Reported-by: Ma Jun <[email protected]> Signed-off-by: Marc Zyngier <[email protected]> Reviewed-by: Jiang Liu <[email protected]> Link: http://lkml.kernel.org/r/[email protected] Signed-off-by: Thomas Gleixner <[email protected]>