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(parent: 6de23f8) | patch
irqchip/msi-lib: Refuse initialization when irq_write_msi_msg() is missing
authorThomas Gleixner <tglx@kernel.org>
Tue, 3 Feb 2026 21:05:44 +0000 (22:05 +0100)
committerThomas Gleixner <tglx@kernel.org>
Tue, 24 Feb 2026 07:17:14 +0000 (08:17 +0100)
commitaa80869b77e16d30ce69523528c63a2e2b050634
tree41a8b2d1c4b1c981e4dbf08e17151e5453b0eda4tree | snapshot
parent6de23f81a5e08be8fbf5e8d7e9febc72a5b5f27fcommit | diff
irqchip/msi-lib: Refuse initialization when irq_write_msi_msg() is missing

MSI parent domains rely on the fact that the top level device domain
provides a irq_write_msi_msg() callback.

Check for that and if missing warn and refuse to initialize the device domain.

Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/87a4xp35cn.ffs@tglx
drivers/irqchip/irq-msi-lib.c diff | blob | blame | history
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