This is a note to let you know that I've just added the patch titled
thunderbolt: Rename shadowed variables bit to interrupt_bit and auto_clear_bit
to the 5.15-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
thunderbolt-rename-shadowed-variables-bit-to-interrupt_bit-and-auto_clear_bit.patch
and it can be found in the queue-5.15 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 58cdfe6f58b35f17f56386f5fcf937168a423ad1 Mon Sep 17 00:00:00 2001
From: Tom Rix <trix@xxxxxxxxxx>
Date: Wed, 15 Mar 2023 18:04:50 -0400
Subject: thunderbolt: Rename shadowed variables bit to interrupt_bit and auto_clear_bit
From: Tom Rix <trix@xxxxxxxxxx>
commit 58cdfe6f58b35f17f56386f5fcf937168a423ad1 upstream.
cppcheck reports
drivers/thunderbolt/nhi.c:74:7: style: Local variable 'bit' shadows outer variable [shadowVariable]
int bit;
^
drivers/thunderbolt/nhi.c:66:6: note: Shadowed declaration
int bit = ring_interrupt_index(ring) & 31;
^
drivers/thunderbolt/nhi.c:74:7: note: Shadow variable
int bit;
^
For readablity rename the outer to interrupt_bit and the innner
to auto_clear_bit.
Fixes: 468c49f44759 ("thunderbolt: Disable interrupt auto clear for ring")
Cc: stable@xxxxxxxxxxxxxxx
Signed-off-by: Tom Rix <trix@xxxxxxxxxx>
Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
drivers/thunderbolt/nhi.c | 17 +++++++++--------
1 file changed, 9 insertions(+), 8 deletions(-)
--- a/drivers/thunderbolt/nhi.c
+++ b/drivers/thunderbolt/nhi.c
@@ -60,15 +60,15 @@ static void ring_interrupt_active(struct
{
int reg = REG_RING_INTERRUPT_BASE +
ring_interrupt_index(ring) / 32 * 4;
- int bit = ring_interrupt_index(ring) & 31;
- int mask = 1 << bit;
+ int interrupt_bit = ring_interrupt_index(ring) & 31;
+ int mask = 1 << interrupt_bit;
u32 old, new;
if (ring->irq > 0) {
u32 step, shift, ivr, misc;
void __iomem *ivr_base;
+ int auto_clear_bit;
int index;
- int bit;
if (ring->is_tx)
index = ring->hop;
@@ -88,11 +88,12 @@ static void ring_interrupt_active(struct
*/
misc = ioread32(ring->nhi->iobase + REG_DMA_MISC);
if (ring->nhi->quirks & QUIRK_AUTO_CLEAR_INT)
- bit = REG_DMA_MISC_INT_AUTO_CLEAR;
+ auto_clear_bit = REG_DMA_MISC_INT_AUTO_CLEAR;
else
- bit = REG_DMA_MISC_DISABLE_AUTO_CLEAR;
- if (!(misc & bit))
- iowrite32(misc | bit, ring->nhi->iobase + REG_DMA_MISC);
+ auto_clear_bit = REG_DMA_MISC_DISABLE_AUTO_CLEAR;
+ if (!(misc & auto_clear_bit))
+ iowrite32(misc | auto_clear_bit,
+ ring->nhi->iobase + REG_DMA_MISC);
ivr_base = ring->nhi->iobase + REG_INT_VEC_ALLOC_BASE;
step = index / REG_INT_VEC_ALLOC_REGS * REG_INT_VEC_ALLOC_BITS;
@@ -112,7 +113,7 @@ static void ring_interrupt_active(struct
dev_dbg(&ring->nhi->pdev->dev,
"%s interrupt at register %#x bit %d (%#x -> %#x)\n",
- active ? "enabling" : "disabling", reg, bit, old, new);
+ active ? "enabling" : "disabling", reg, interrupt_bit, old, new);
if (new == old)
dev_WARN(&ring->nhi->pdev->dev,
Patches currently in stable-queue which might be from trix@xxxxxxxxxx are
queue-5.15/thunderbolt-rename-shadowed-variables-bit-to-interrupt_bit-and-auto_clear_bit.patch
