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thunderbolt: Use min() for the DMA path credit cap

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tb_dma_reserve_credits() caps the request against what the adapter has
left by decrementing one credit at a time. The other arm of the same
if() already caps with min(port->total_credits, credits); use min()
here too.

No functional change: the object code is unchanged.

Assisted-by: Claude:claude-opus-5
Signed-off-by: Fan Ye <fy15309206903@gmail.com>
Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
This commit is contained in:
Fan Ye 2026-08-10 09:38:43 +00:00 committed by Mika Westerberg
parent f7c0e02eb6
commit e8158c8a6a
1 changed files with 1 additions and 2 deletions
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3
drivers/thunderbolt/tunnel.c
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@ -1778,8 +1778,7 @@ static int tb_dma_reserve_credits(struct tb_path_hop *hop, unsigned int credits)
if (available < TB_MIN_DMA_CREDITS)
return -ENOSPC;
while (credits > available)
credits--;
credits = min(credits, available);
tb_port_dbg(port, "reserving %u credits for DMA path\n",
credits);