[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: [PATCH 1/7] byteorder: replace __u16


  • To: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
  • From: Jan Beulich <jbeulich@xxxxxxxx>
  • Date: Wed, 16 Oct 2024 11:37:20 +0200
  • Autocrypt: addr=jbeulich@xxxxxxxx; keydata= xsDiBFk3nEQRBADAEaSw6zC/EJkiwGPXbWtPxl2xCdSoeepS07jW8UgcHNurfHvUzogEq5xk hu507c3BarVjyWCJOylMNR98Yd8VqD9UfmX0Hb8/BrA+Hl6/DB/eqGptrf4BSRwcZQM32aZK 7Pj2XbGWIUrZrd70x1eAP9QE3P79Y2oLrsCgbZJfEwCgvz9JjGmQqQkRiTVzlZVCJYcyGGsD /0tbFCzD2h20ahe8rC1gbb3K3qk+LpBtvjBu1RY9drYk0NymiGbJWZgab6t1jM7sk2vuf0Py O9Hf9XBmK0uE9IgMaiCpc32XV9oASz6UJebwkX+zF2jG5I1BfnO9g7KlotcA/v5ClMjgo6Gl MDY4HxoSRu3i1cqqSDtVlt+AOVBJBACrZcnHAUSuCXBPy0jOlBhxPqRWv6ND4c9PH1xjQ3NP nxJuMBS8rnNg22uyfAgmBKNLpLgAGVRMZGaGoJObGf72s6TeIqKJo/LtggAS9qAUiuKVnygo 3wjfkS9A3DRO+SpU7JqWdsveeIQyeyEJ/8PTowmSQLakF+3fote9ybzd880fSmFuIEJldWxp Y2ggPGpiZXVsaWNoQHN1c2UuY29tPsJgBBMRAgAgBQJZN5xEAhsDBgsJCAcDAgQVAggDBBYC AwECHgECF4AACgkQoDSui/t3IH4J+wCfQ5jHdEjCRHj23O/5ttg9r9OIruwAn3103WUITZee e7Sbg12UgcQ5lv7SzsFNBFk3nEQQCACCuTjCjFOUdi5Nm244F+78kLghRcin/awv+IrTcIWF hUpSs1Y91iQQ7KItirz5uwCPlwejSJDQJLIS+QtJHaXDXeV6NI0Uef1hP20+y8qydDiVkv6l IreXjTb7DvksRgJNvCkWtYnlS3mYvQ9NzS9PhyALWbXnH6sIJd2O9lKS1Mrfq+y0IXCP10eS FFGg+Av3IQeFatkJAyju0PPthyTqxSI4lZYuJVPknzgaeuJv/2NccrPvmeDg6Coe7ZIeQ8Yj t0ARxu2xytAkkLCel1Lz1WLmwLstV30g80nkgZf/wr+/BXJW/oIvRlonUkxv+IbBM3dX2OV8 AmRv1ySWPTP7AAMFB/9PQK/VtlNUJvg8GXj9ootzrteGfVZVVT4XBJkfwBcpC/XcPzldjv+3 HYudvpdNK3lLujXeA5fLOH+Z/G9WBc5pFVSMocI71I8bT8lIAzreg0WvkWg5V2WZsUMlnDL9 mpwIGFhlbM3gfDMs7MPMu8YQRFVdUvtSpaAs8OFfGQ0ia3LGZcjA6Ik2+xcqscEJzNH+qh8V m5jjp28yZgaqTaRbg3M/+MTbMpicpZuqF4rnB0AQD12/3BNWDR6bmh+EkYSMcEIpQmBM51qM EKYTQGybRCjpnKHGOxG0rfFY1085mBDZCH5Kx0cl0HVJuQKC+dV2ZY5AqjcKwAxpE75MLFkr wkkEGBECAAkFAlk3nEQCGwwACgkQoDSui/t3IH7nnwCfcJWUDUFKdCsBH/E5d+0ZnMQi+G0A nAuWpQkjM1ASeQwSHEeAWPgskBQL
  • Cc: Julien Grall <julien@xxxxxxx>, Stefano Stabellini <sstabellini@xxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
  • Delivery-date: Wed, 16 Oct 2024 09:37:31 +0000
  • List-id: Xen developer discussion <xen-devel.lists.xenproject.org>

On 09.10.2024 15:34, Jan Beulich wrote:
> On 09.10.2024 15:20, Andrew Cooper wrote:
>> On 09/10/2024 10:21 am, Jan Beulich wrote:
>>> In {big,little}_endian.h the changes are entirely mechanical, except for
>>> dealing with casting away of const from pointers-to-const on lines
>>> touched anyway.
>>>
>>> In swab.h the casting of constants is done away with as well - I simply
>>> don't see what the respective comment is concerned about in our
>>> environment (sizeof(int) >= 4, sizeof(long) >= {4,8} depending on
>>> architecture, sizeof(long long) >= 8). The comment is certainly relevant
>>> in more general cases. Excess parentheses are dropped as well,
>>> ___swab16()'s local variable is renamed, and __arch__swab16()'s is
>>> dropped as being redundant with ___swab16()'s.
>>>
>>> With that no uses of the type remain, so it moves to linux-compat.h.
>>>
>>> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
>>> ---
>>> I'm unconvinced of the need of the separate ___constant_swab16(). I'm
>>> also unconvinced of the need for said constants (that even had casts on
>>> them).
>>
>> There is a still-good series deleting the whole of byteorder/ and
>> replacing it with a few-hundred line single header.
>>
>> It is the second thing stalled on a governance change (prohibited
>> reasons to object to a change) which clearly no-one gives a damn about
>> fixing.  In fact double spite because it denied a good engineer his
>> first changes in Xen.
>>
>>
>> I don't particularly feel like trying to polish byteorder.  I'm inclined
>> to rebase+repost Lin's patches, at which point the majority of this
>> series simply disappears.
> 
> I wouldn't mind you doing so, as long as that other series then progresses.
> What I don't want to get into is the other series being stuck rendering this
> one stuck, too. Then it would imo be better to take this one first, rebase
> the other on top, and work towards it becoming unstuck (whatever that takes;
> I have no recollection of what the issue was back at the time, all I recall
> is that, yes, there was such work at some point).

Just to have a clear picture: Was your reply an objection, with you indeed
meaning me to hold back this tidying work? If so, can you please indicate
when, at least roughly, you mean to re-post what you think wants re-posting?
If not, can you please indicate so, for me to commit stuff that's otherwise
ready to go in (and which that other work should be easy to re-base over)?

Jan



 


Rackspace

Lists.xenproject.org is hosted with RackSpace, monitoring our
servers 24x7x365 and backed by RackSpace's Fanatical Support®.