From: Markus Armbruster <armbru@redhat.com>
To: Eric Blake <eblake@redhat.com>
Cc: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>,
qemu-devel@nongnu.org
Subject: Re: [PULL 34/34] nbd: assert that Error** is not NULL in nbd_iter_channel_error
Date: Wed, 18 Dec 2019 09:46:50 +0100 [thread overview]
Message-ID: <87sgli3ts5.fsf@dusky.pond.sub.org> (raw)
In-Reply-To: <87imme84ya.fsf@dusky.pond.sub.org> (Markus Armbruster's message of "Wed, 18 Dec 2019 08:31:57 +0100")
Markus Armbruster <armbru@redhat.com> writes:
> Eric Blake <eblake@redhat.com> writes:
>
>> On 12/17/19 12:26 AM, Markus Armbruster wrote:
>>> From: Vladimir Sementsov-Ogievskiy <vsementsov@virtuozzo.com>
>>>
>>> All callers of nbd_iter_channel_error() pass the address of a
>>> local_err variable, and only call this function if an error has
>>> already occurred, using this function to propagate that error.
>>> This is already implied by its name (local_err instead of the classic
>>> errp), but it is worth additionally stressing this by adding an
>>> assertion to make it part of the function contract.
>>>
>>> The local_err parameter is not here to return information about
>>> nbd_iter_channel_error failure. Instead it's assumed to be filled when
>>> passed to the function. This is already stressed by its name
>>> (local_err, instead of classic errp). Stress it additionally by
>>> assertion.
>>
>> Redundant paragraph, but probably too late to worry about it now that
>> we have a pull request.
>
> I'll have to respin anyway. I'll drop the second paragraph.
Rats, I forgot.
next prev parent reply other threads:[~2019-12-18 8:47 UTC|newest]
Thread overview: 40+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-12-17 6:26 [PULL 00/34] Error reporting patches for 2019-12-16 Markus Armbruster
2019-12-17 6:26 ` [PULL 01/34] error: Fix -msg timestamp default Markus Armbruster
2019-12-17 6:26 ` [PULL 02/34] crypto: Fix certificate file error handling crash bug Markus Armbruster
2019-12-17 6:26 ` [PULL 03/34] crypto: Fix typo in QCryptoTLSSession's <example> comment Markus Armbruster
2019-12-17 6:26 ` [PULL 04/34] io: Fix Error usage in a comment <example> Markus Armbruster
2019-12-17 6:26 ` [PULL 05/34] tests: Clean up initialization of Error *err variables Markus Armbruster
2019-12-17 6:26 ` [PULL 06/34] exec: Fix file_ram_alloc() error API violations Markus Armbruster
2019-12-17 6:26 ` [PULL 07/34] hw/acpi: Fix legacy CPU plug " Markus Armbruster
2019-12-17 6:26 ` [PULL 08/34] hw/core: Fix fit_load_fdt() " Markus Armbruster
2019-12-17 6:26 ` [PULL 09/34] hw/ipmi: Fix realize() " Markus Armbruster
2019-12-17 6:26 ` [PULL 10/34] qga: Fix guest-get-fsinfo " Markus Armbruster
2019-12-17 6:26 ` [PULL 11/34] memory-device: Fix memory pre-plug " Markus Armbruster
2019-12-17 6:26 ` [PULL 12/34] error: Clean up unusual names of Error * variables Markus Armbruster
2019-12-17 6:26 ` [PULL 13/34] hw/intc/s390: Simplify error handling in kvm_s390_flic_realize() Markus Armbruster
2019-12-17 6:26 ` [PULL 14/34] tests-blockjob: Use error_free_or_abort() Markus Armbruster
2019-12-17 6:26 ` [PULL 15/34] net/net: Clean up variable shadowing in net_client_init() Markus Armbruster
2019-12-17 6:26 ` [PULL 16/34] error: make Error **errp const where it is appropriate Markus Armbruster
2019-12-17 6:26 ` [PULL 17/34] hmp: drop Error pointer indirection in hmp_handle_error Markus Armbruster
2019-12-17 6:26 ` [PULL 18/34] vnc: drop Error pointer indirection in vnc_client_io_error Markus Armbruster
2019-12-17 6:26 ` [PULL 19/34] qdev-monitor: make Error **errp const where it is appropriate Markus Armbruster
2019-12-17 6:26 ` [PULL 20/34] ppc: " Markus Armbruster
2019-12-17 6:26 ` [PULL 21/34] 9pfs: " Markus Armbruster
2019-12-17 6:26 ` [PULL 22/34] hw/core/qdev: cleanup Error ** variables Markus Armbruster
2019-12-17 6:26 ` [PULL 23/34] block/snapshot: rename Error ** parameter to more common errp Markus Armbruster
2019-12-17 6:26 ` [PULL 24/34] hw/i386/amd_iommu: " Markus Armbruster
2019-12-17 6:26 ` [PULL 25/34] qga: " Markus Armbruster
2019-12-17 6:26 ` [PULL 26/34] monitor/qmp-cmds: " Markus Armbruster
2019-12-17 6:26 ` [PULL 27/34] hw/s390x: " Markus Armbruster
2019-12-17 6:26 ` [PULL 28/34] hw/sd: drop extra whitespace in sdhci_sysbus_realize() header Markus Armbruster
2019-12-17 6:26 ` [PULL 29/34] hw/tpm: rename Error ** parameter to more common errp Markus Armbruster
2019-12-17 6:26 ` [PULL 30/34] hw/usb: " Markus Armbruster
2019-12-17 6:26 ` [PULL 31/34] include/qom/object.h: " Markus Armbruster
2019-12-17 6:26 ` [PULL 32/34] backends/cryptodev: drop local_err from cryptodev_backend_complete() Markus Armbruster
2019-12-17 6:26 ` [PULL 33/34] hw/vfio/ap: drop local_err from vfio_ap_realize Markus Armbruster
2019-12-17 6:26 ` [PULL 34/34] nbd: assert that Error** is not NULL in nbd_iter_channel_error Markus Armbruster
2019-12-17 13:09 ` Eric Blake
2019-12-18 7:31 ` Markus Armbruster
2019-12-18 8:46 ` Markus Armbruster [this message]
2019-12-17 15:49 ` [PULL 00/34] Error reporting patches for 2019-12-16 Peter Maydell
2019-12-18 7:35 ` Markus Armbruster
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=87sgli3ts5.fsf@dusky.pond.sub.org \
--to=armbru@redhat.com \
--cc=eblake@redhat.com \
--cc=qemu-devel@nongnu.org \
--cc=vsementsov@virtuozzo.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.