Re: [PATCH 1/7] migration/rdma: Fix save_page method to fail on polling error

[Markus Armbruster <armbru@xxxxxxxxxx>]

Eric Blake <eblake@xxxxxxxxxx> writes:

> On Thu, Aug 31, 2023 at 03:25:40PM +0200, Markus Armbruster wrote:
>> qemu_rdma_save_page() reports polling error with error_report(), then
>> succeeds anyway.  This is because the variable holding the polling
>> status *shadows* the variable the function returns.  The latter
>> remains zero.
>> 
>> Broken since day one, and duplicated more recently.
>> 
>> Fixes: 2da776db4846 (rdma: core logic)
>> Fixes: b390afd8c50b (migration/rdma: Fix out of order wrid)
>
> Alas, the curse of immutable git history preserving typos in commit
> subjects ;)

"wrid" is short for "work request ID", actually.

>             The alternative of rewriting history and breaking SHA
> references is worse.

Rewriting master is a big no-no.

git-note can be used to correct the record, but it has its usability
issues.

>> Signed-off-by: Markus Armbruster <armbru@xxxxxxxxxx>
>> ---
>>  migration/rdma.c | 6 ++++--
>>  1 file changed, 4 insertions(+), 2 deletions(-)
>
> Reviewed-by: Eric Blake <eblake@xxxxxxxxxx>

Thanks!