From: Bart Van Assche <bvanassche@acm.org>
To: John Garry <john.garry@huawei.com>,
"Martin K . Petersen" <martin.petersen@oracle.com>
Cc: linux-scsi@vger.kernel.org, "James E.J. Bottomley" <jejb@linux.ibm.com>
Subject: Re: [PATCH 02/84] scsi: core: Rename scsi_mq_done() into scsi_done() and export it
Date: Mon, 20 Sep 2021 09:28:33 -0700 [thread overview]
Message-ID: <36171806-8c85-654d-1f7d-3d19fc7227c9@acm.org> (raw)
In-Reply-To: <ee1a1197-1fd1-e9d9-6b45-79108d56830b@huawei.com>
On 9/20/21 2:42 AM, John Garry wrote:
> On 18/09/2021 01:04, Bart Van Assche wrote:
>> @@ -1692,7 +1693,7 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
>> scsi_set_resid(cmd, 0);
>> memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
>> - cmd->scsi_done = scsi_mq_done;
>> + cmd->scsi_done = scsi_done;
>
> I have gone to the end of the series, and we still set scsi_cmnd.scsi_done. So some drivers still rely on it. I thought that the idea was that we don't need this callback pointer any longer.
It seems like the email service I used to send out the patches (gmail)
dropped patches 79/84..84/84. The entire patch series is available here:
https://github.com/bvanassche/linux/tree/scsi-remove-done-callback
Patch 84/84 includes the following change:
@@ -1693,7 +1693,6 @@ static blk_status_t scsi_queue_rq(struct blk_mq_hw_ctx *hctx,
scsi_set_resid(cmd, 0);
memset(cmd->sense_buffer, 0, SCSI_SENSE_BUFFERSIZE);
- cmd->scsi_done = scsi_done;
blk_mq_start_request(req);
reason = scsi_dispatch_cmd(cmd);
> As an aside, this is the current declaration of scsi_cmnd.scsi_done:
>
> /* Low-level done function - can be used by low-level driver to point
> * to completion function. Not used by mid/upper level code. */
> void (*scsi_done) (struct scsi_cmnd *);
>
> That does not sound right, as scsi_done is set by the mid-layer.
"Not used" probably should have been "not called". Anyway, patch 84/84
removes that function pointer and also the comment above that function
pointer.
Thanks,
Bart.
next prev parent reply other threads:[~2021-09-20 16:28 UTC|newest]
Thread overview: 106+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-09-18 0:04 [PATCH 00/84] Call scsi_done() directly Bart Van Assche
2021-09-18 0:04 ` [PATCH 01/84] scsi: core: Use a member variable to track the SCSI command submitter Bart Van Assche
2021-09-24 9:36 ` Benjamin Block
2021-09-25 3:38 ` Bart Van Assche
2021-09-27 19:55 ` Benjamin Block
2021-09-28 16:54 ` Benjamin Block
2021-09-28 18:51 ` Bart Van Assche
2021-09-18 0:04 ` [PATCH 02/84] scsi: core: Rename scsi_mq_done() into scsi_done() and export it Bart Van Assche
2021-09-20 9:42 ` John Garry
2021-09-20 16:28 ` Bart Van Assche [this message]
2021-09-20 16:47 ` John Garry
2021-09-28 16:57 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 03/84] scsi: core: Call scsi_done directly Bart Van Assche
2021-09-28 16:59 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 04/84] ata: Call scsi_done() directly Bart Van Assche
2021-09-21 1:02 ` Damien Le Moal
2021-09-18 0:04 ` [PATCH 05/84] firewire: sbp2: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 06/84] ib_srp: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 07/84] message: fusion: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 08/84] zfcp_scsi: " Bart Van Assche
2021-09-28 17:01 ` Benjamin Block
2021-09-18 0:04 ` [PATCH 09/84] 3w-9xxx: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 10/84] 3w-sas: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 11/84] 3w-xxxx: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 12/84] 53c700: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 13/84] BusLogic: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 14/84] NCR5380: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 15/84] a100u2w: " Bart Van Assche
2021-09-18 0:04 ` [PATCH 16/84] aacraid: Introduce aac_scsi_done() Bart Van Assche
2021-09-18 0:05 ` [PATCH 17/84] aacraid: Call scsi_done() directly Bart Van Assche
2021-09-18 0:05 ` [PATCH 18/84] acornscsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 19/84] advansys: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 20/84] aha152x: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 21/84] aha1542: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 22/84] aic7xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 23/84] arcmsr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 24/84] atp870u: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 25/84] bfa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 26/84] bnx2fc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 27/84] csiostor: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 28/84] cxlflash: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 29/84] dc395x: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 30/84] dpt_i2o: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 31/84] esas2r: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 32/84] esp_scsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 33/84] fas216: " Bart Van Assche
2021-09-18 0:25 ` Russell King (Oracle)
2021-09-19 2:25 ` Bart Van Assche
2021-09-18 0:05 ` [PATCH 34/84] fdomain: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 35/84] fnic: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 36/84] hpsa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 37/84] hptiop: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 38/84] ibmvscsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 39/84] imm: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 40/84] initio: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 41/84] ipr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 42/84] ips: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 43/84] libfc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 44/84] libiscsi: " Bart Van Assche
2021-09-18 18:34 ` Lee Duncan
2021-09-18 0:05 ` [PATCH 45/84] libsas: " Bart Van Assche
2021-09-22 17:26 ` John Garry
2021-09-18 0:05 ` [PATCH 46/84] lpfc: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 47/84] mac53c94: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 48/84] megaraid: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 49/84] " Bart Van Assche
2021-09-18 0:05 ` [PATCH 50/84] mesh: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 51/84] mpi3mr: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 52/84] mpt3sas: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 53/84] mvumi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 54/84] myrb: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 55/84] myrs: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 56/84] ncr53c8xx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 57/84] nsp32: " Bart Van Assche
2021-09-18 1:10 ` Masanori Goto
2021-09-18 3:08 ` Bart Van Assche
2021-09-18 0:05 ` [PATCH 58/84] pcmcia: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 59/84] pmcraid: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 60/84] ppa: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 61/84] ps3rom: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 62/84] qedf: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 63/84] qla1280: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 64/84] qla2xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 65/84] qla4xxx: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 66/84] qlogicfas408: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 67/84] qlogicpti: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 68/84] scsi_debug: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 69/84] smartpqi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 70/84] snic: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 71/84] stex: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 72/84] storvsc_drv: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 73/84] sym53c8xx_2: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 74/84] ufs: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 75/84] virtio_scsi: " Bart Van Assche
2021-09-18 0:05 ` [PATCH 76/84] vmw_pvscsi: " Bart Van Assche
2021-09-18 0:06 ` [PATCH 77/84] wd33c93: " Bart Van Assche
2021-09-18 0:06 ` [PATCH 78/84] wd719x: " Bart Van Assche
2021-09-22 16:25 ` [PATCH 79/84] xen-scsifront: " Bart Van Assche
2021-09-22 16:25 ` [PATCH 80/84] staging: rts5208: " Bart Van Assche
2021-09-23 6:49 ` Greg Kroah-Hartman
2021-09-22 16:25 ` [PATCH 81/84] staging: unisys: visorhba: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 82/84] target/tcm_loop: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 83/84] usb: " Bart Van Assche
2021-09-22 16:26 ` [PATCH 84/84] scsi_lib: " Bart Van Assche
2021-09-28 17:04 ` Benjamin Block
2021-09-23 8:15 ` [PATCH 79/84] xen-scsifront: " Juergen Gross
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