linux-kernel - Re: [PATCH] scsi: pmcraid: Replace cpu_to_be64 + le64_to

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Message-Id: <2A50F908-C2F2-437F-A817-889C507FBF13@linux.dev>
Date: Wed, 10 Dec 2025 23:45:02 +0100
From: Thorsten Blum <thorsten.blum@...ux.dev>
To: David Laight <david.laight.linux@...il.com>
Cc: Christoph Hellwig <hch@...radead.org>,
 "James E.J. Bottomley" <James.Bottomley@...senpartnership.com>,
 "Martin K. Petersen" <martin.petersen@...cle.com>,
 linux-scsi@...r.kernel.org,
 linux-kernel@...r.kernel.org
Subject: Re: [PATCH] scsi: pmcraid: Replace cpu_to_be64 + le64_to_cpu with
 swab64

On 10. Dec 2025, at 23:21, David Laight wrote:
> 
> [...]
> 
> You'd need to run sparse.

I compiled it with C=1 and there are other, unrelated sparse warnings:

CC [M]  drivers/scsi/pmcraid.o
CHECK   drivers/scsi/pmcraid.c
drivers/scsi/pmcraid.c:73:1: error: bad constant expression
drivers/scsi/pmcraid.c:74:1: error: bad constant expression
drivers/scsi/pmcraid.c:75:1: error: bad constant expression
drivers/scsi/pmcraid.c:76:1: error: bad constant expression
drivers/scsi/pmcraid.c:78:1: error: bad constant expression
drivers/scsi/pmcraid.c:79:1: error: bad constant expression
drivers/scsi/pmcraid.c:84:1: error: bad constant expression
drivers/scsi/pmcraid.c:85:1: error: bad constant expression
drivers/scsi/pmcraid.c:89:1: error: bad constant expression
drivers/scsi/pmcraid.c:90:1: error: bad constant expression

Compiling with V=1 also confirms that sparse is running:

# CHECK   drivers/scsi/pmcraid.c
sparse -D__linux__ ... -D__KBUILD_MODNAME=pmcraid drivers/scsi/pmcraid.c