Re: [PATCH 5.10 063/173] thunderbolt: Use const qualifier for `ring_interrupt_index`

Hi!

From: Mario Limonciello mario.limonciello@amd.com

commit 1716efdb07938bd6510e1127d02012799112c433 upstream.

`ring_interrupt_index` doesn't change the data for `ring` so mark it as const. This is needed by the following patch that disables interrupt auto clear for rings.

Yeah, nice cleanup. But do we really need it in -stable?

Best regards, Pavel

+++ b/drivers/thunderbolt/nhi.c @@ -36,7 +36,7 @@ #define NHI_MAILBOX_TIMEOUT 500 /* ms */ -static int ring_interrupt_index(struct tb_ring *ring) +static int ring_interrupt_index(const struct tb_ring *ring) { int bit = ring->hop; if (!ring->is_tx)