Thread (20 messages) 20 messages, 2 authors, 2021-11-04

Re: [PATCH v5 00/14] last set for add_disk() error handling

From: Jens Axboe <axboe@kernel.dk>
Date: 2021-11-04 17:10:55
Also in: linux-block, linux-scsi, lkml

On 11/4/21 11:07 AM, Luis Chamberlain wrote:
On Thu, Nov 04, 2021 at 06:53:34AM -0600, Jens Axboe wrote:
quoted
On 11/4/21 5:49 AM, Jens Axboe wrote:
quoted
On Wed, 3 Nov 2021 16:04:23 -0700, Luis Chamberlain wrote:
quoted
Jens,

as requested, I've folded all pending changes into this series. This
v5 pegs on Christoph's reviewed-by tags and since I was respinning I
modified the ataprobe and floppy driver changes as he suggested.

I think this is it. The world of floppy has been exciting for v5.16.

[...]
Applied, thanks!

[01/14] nvdimm/btt: use goto error labels on btt_blk_init()
        commit: 2762ff06aa49e3a13fb4b779120f4f8c12c39fd1
[02/14] nvdimm/btt: add error handling support for add_disk()
        commit: 16be7974ff5d0a5cd9f345571c3eac1c3f6ba6de
[03/14] nvdimm/blk: avoid calling del_gendisk() on early failures
        commit: b7421afcec0c77ab58633587ddc29d53e6eb95af
[04/14] nvdimm/blk: add error handling support for add_disk()
        commit: dc104f4bb2d0a652dee010e47bc89c1ad2ab37c9
[05/14] nvdimm/pmem: cleanup the disk if pmem_release_disk() is yet assigned
        commit: accf58afb689f81daadde24080ea1164ad2db75f
[06/14] nvdimm/pmem: use add_disk() error handling
        commit: 5a192ccc32e2981f721343c750b8cfb4c3f41007
[07/14] z2ram: add error handling support for add_disk()
        commit: 15733754ccf35c49d2f36a7ac51adc8b975c1c78
[08/14] block/sunvdc: add error handling support for add_disk()
        commit: f583eaef0af39b792d74e39721b5ba4b6948a270
[09/14] mtd/ubi/block: add error handling support for add_disk()
        commit: ed73919124b2e48490adbbe48ffe885a2a4c6fee
[10/14] ataflop: remove ataflop_probe_lock mutex
        commit: 4ddb85d36613c45bde00d368bf9f357bd0708a0c
[11/14] block: update __register_blkdev() probe documentation
        commit: 26e06f5b13671d194d67ae8e2b66f524ab174153
[12/14] ataflop: address add_disk() error handling on probe
        commit: 46a7db492e7a27408bc164cbe6424683e79529b0
[13/14] floppy: address add_disk() error handling on probe
        commit: ec28fcc6cfcd418d20038ad2c492e87bf3a9f026
[14/14] block: add __must_check for *add_disk*() callers
        commit: 1698712d85ec2f128fc7e7c5dc2018b5ed2b7cf6
rivers/scsi/sd.c: In function ‘sd_probe’:
drivers/scsi/sd.c:3573:9: warning: ignoring return value of ‘device_add_disk’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
 3573 |         device_add_disk(dev, gd, NULL);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
drivers/scsi/sr.c: In function ‘sr_probe’:
drivers/scsi/sr.c:731:9: warning: ignoring return value of ‘device_add_disk’ declared with attribute ‘warn_unused_result’ [-Wunused-result]
  731 |         device_add_disk(&sdev->sdev_gendev, disk, NULL);
      |         ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~


Dropping the last two patches...
Martin K Peterson has the respective patches needed queued up on his tree
for v5.16:

https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.16/scsi-staging&id=e9d658c2175b95a8f091b12ddefb271683aeacd9
https://git.kernel.org/pub/scm/linux/kernel/git/mkp/scsi.git/commit/?h=5.16/scsi-staging&id=2a7a891f4c406822801ecd676b076c64de072c9e

Would the last patch be sent once that gets to Linus?
But that dependency wasn't clear in the patches posted, and it leaves me
wondering if there are others? I obviously can't queue up a patch that
adds a must_check to a function, when we still have callers that don't
properly check it.

That should have been made clear, and that last patch never should've
been part of the series. Please send it once Linus's tree has all
callers checking the result.
Also curious why drop the last two patches instead just the last one for
now?
Sorry, meant just the last one.

-- 
Jens Axboe
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