linux-kernel - Re: [PATCH] dma-debug: Fix overflow issue in bucket_find

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Message-ID: <20220801175744.GA17256@lst.de>
Date:   Mon, 1 Aug 2022 19:57:44 +0200
From:   Christoph Hellwig <hch@....de>
To:     yf.wang@...iatek.com
Cc:     Christoph Hellwig <hch@....de>,
        Robin Murphy <robin.murphy@....com>,
        Marek Szyprowski <m.szyprowski@...sung.com>,
        Matthias Brugger <matthias.bgg@...il.com>,
        "open list:DMA MAPPING HELPERS" <iommu@...ts.linux.dev>,
        open list <linux-kernel@...r.kernel.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-arm-kernel@...ts.infradead.org>,
        "moderated list:ARM/Mediatek SoC support" 
        <linux-mediatek@...ts.infradead.org>, wsd_upstream@...iatek.com,
        Libo Kang <Libo.Kang@...iatek.com>,
        Ning Li <Ning.Li@...iatek.com>, Yong Wu <Yong.Wu@...iatek.com>,
        Miles Chen <miles.chen@...iatek.com>,
        jianjiao zeng <jianjiao.zeng@...iatek.com>
Subject: Re: [PATCH] dma-debug: Fix overflow issue in bucket_find_contain

> +	unsigned int shift = (1 << HASH_FN_SHIFT);

Please just add a constant for that right nxt to the HASH_FN_SHIFT
definition.