From: Mario Limonciello <mario.limonciello@amd.com>
Date: Fri, 10 Mar 2023 17:20:49 +0000 (-0600)
Subject: thunderbolt: Use const qualifier for `ring_interrupt_index`
X-Git-Tag: baikal/mips/sdk5.8.2~75
X-Git-Url: https://git.baikalelectronics.ru/sdk/?a=commitdiff_plain;h=f315ab4f088fa3a65b397c6e52a606b8cc3ea253;p=kernel.git

thunderbolt: Use const qualifier for `ring_interrupt_index`

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.

Cc: Sanju Mehta <Sanju.Mehta@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---

diff --git a/drivers/thunderbolt/nhi.c b/drivers/thunderbolt/nhi.c
index 73a698eec7430..8a117d1c8888d 100644
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -40,7 +40,7 @@
 
 #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)