Re: [PATCH net-next v4 1/8] net: dsa: microchip: Add support for KSZ8463 global irq
From: Bastien Curutchet <hidden>
Date: 2026-01-28 09:22:59
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From: Bastien Curutchet <hidden>
Date: 2026-01-28 09:22:59
Also in:
lkml
Hi Jakub, On 1/28/26 4:03 AM, Jakub Kicinski wrote:
On Tue, 27 Jan 2026 10:06:43 +0100 Bastien Curutchet (Schneider Electric) wrote:quoted
/* Read interrupt status register */ - ret = ksz_read8(dev, kirq->reg_status, &data); + ret = ksz_read16(dev, kirq->reg_status, &data);AI code review points out that we're potentially over-reading here for !ksz_is_ksz8463(kirq->dev), I'm assuming the wider read is okay for all chips? Is this something that'll be obvious to all readers of this code or should we perhaps leave a relevant comment here? (assuming you need to respin, not sure its worth a respin by itself)
The loop below this read only iterates over the first kirq->nirqs bits, so I assume a wider read is fine. I wanted to avoid adding if (ksz_is_ksz8463()) branches as much as possible. Indeed, a comment wouldn't hurt here; I'll add one if I need to respin. Best regards, Bastien