Linux SCSI subsystem development
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From: Bart Van Assche <bvanassche@acm.org>
To: Brian Bunker <brian@purestorage.com>
Cc: hare@suse.de, linux-scsi@vger.kernel.org, krishna.kant@purestorage.com
Subject: Re: [PATCH v3 2/6] scsi: Protect INQUIRY sysfs attributes with mutex
Date: Sat, 2 May 2026 18:37:45 +0200	[thread overview]
Message-ID: <5de0e746-1a90-4a41-a36b-e56a4fcfeee6@acm.org> (raw)
In-Reply-To: <20260501221153.90440-1-brian@purestorage.com>

On 5/1/26 3:11 PM, Brian Bunker wrote:
>> +	sdev->vendor = (char *)(sdev->inquiry + 8);
>> +	sdev->model = (char *)(sdev->inquiry + 16);
>> +	sdev->rev = (char *)(sdev->inquiry + 32);
>>
>> I really hate these.
>> Can't we replace them with accessor functions and drop the pointers?

Hannes, what type of accessor functions do you have in mind? I don't
like accessor functions that only do half of the job (returning the
start pointer but not the length). Or are you perhaps suggesting to
define accessor functions that return a struct with both the start
pointer and the length, something that is uncommon in the Linux kernel?

Another possibility is to change sdev->vendor, sdev->model and
sdev->rev from pointers to fixed size strings into '\0'-terminated char
arrays.

Thanks,

Bart.

  reply	other threads:[~2026-05-02 16:37 UTC|newest]

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-04-24 21:53 [PATCH 0/6] scsi: Support ALUA unavailable state and INQUIRY changes Brian Bunker
2026-04-24 21:53 ` [PATCH 1/6] scsi: Add INQUIRY data field definitions and accessor helpers Brian Bunker
2026-04-27  8:19   ` Hannes Reinecke
2026-04-30 15:50   ` Bart Van Assche
2026-04-24 21:53 ` [PATCH 2/6] scsi: Protect INQUIRY sysfs attributes with mutex Brian Bunker
2026-04-27  8:22   ` Hannes Reinecke
2026-04-29  1:27     ` [PATCH v2 " Brian Bunker
2026-04-29 21:06       ` Damien Le Moal
2026-04-29 21:15       ` Bart Van Assche
2026-04-29 22:49       ` [PATCH v3 " Brian Bunker
2026-04-30  6:03         ` Hannes Reinecke
2026-04-30 15:48         ` Bart Van Assche
2026-05-01 22:11           ` Brian Bunker
2026-05-02 16:37             ` Bart Van Assche [this message]
2026-05-03 15:44               ` Bart Van Assche
2026-05-04 18:36                 ` Brian Bunker
2026-05-05  8:24                   ` Bart Van Assche
2026-05-05 17:13                     ` Brian Bunker
2026-04-24 21:53 ` [PATCH 3/6] scsi: Add scsi_update_inquiry_data() for updating INQUIRY data Brian Bunker
2026-04-24 21:53 ` [PATCH 4/6] scsi: Refactor scsi_add_lun() to use scsi_update_inquiry_data() Brian Bunker
2026-04-24 21:53 ` [PATCH 5/6] scsi: Add device reprobe support to scsi_rescan_device() Brian Bunker
2026-04-24 21:53 ` [PATCH 6/6] scsi: Handle reprobe for existing devices during SCSI scan Brian Bunker

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