Re: [PATCH] scsi: aic7xxx: Fix unintentional sign extension issue on left shift of u8

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To: Colin King <colin.king@xxxxxxxxxxxxx>
Subject: Re: [PATCH] scsi: aic7xxx: Fix unintentional sign extension issue on left shift of u8
From: "Martin K. Petersen" <martin.petersen@xxxxxxxxxx>
Date: Tue, 22 Jun 2021 21:17:06 -0400
Cc: Hannes Reinecke <hare@xxxxxxxx>, "James E . J . Bottomley" <jejb@xxxxxxxxxxxxx>, "Martin K . Petersen" <martin.petersen@xxxxxxxxxx>, linux-scsi@xxxxxxxxxxxxxxx, kernel-janitors@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx
In-reply-to: <20210621151727.20667-1-colin.king@canonical.com> (Colin King's message of "Mon, 21 Jun 2021 16:17:27 +0100")
Organization: Oracle Corporation

Colin,

> The shifting of the u8 integer returned fom ahc_inb(ahc, port+3) by 24
> bits to the left will be promoted to a 32 bit signed int and then
> sign-extended to a u64.

Applied to 5.14/scsi-staging, thanks!

-- 
Martin K. Petersen	Oracle Linux Engineering

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References:
- [PATCH] scsi: aic7xxx: Fix unintentional sign extension issue on left shift of u8
  - From: Colin King

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