irq_chip_compose_msi_msg
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## Name

irq_chip_compose_msi_msg — Componse msi message for a irq chip

## Synopsis

`int irq_chip_compose_msi_msg (` | struct irq_data * data,
| struct msi_msg * msg`)`;

## Arguments

`data`

  Pointer to interrupt specific data

`msg`

  Pointer to the MSI message

## Description

For hierarchical domains we find the first chip in the hierarchy which implements the irq_compose_msi_msg callback. For non hierarchical we use the top level chip.

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