Re: [PATCH V2 0/8] perf tools: Fix test "perf probe of function from different CU"

From: James Clark
Date: Wed Apr 17 2024 - 09:25:47 EST




On 14/04/2024 12:41, Alexey Dobriyan wrote:
> On Thu, Apr 11, 2024 at 05:40:04PM +0530, Chaitanya S Prakash wrote:
>>
>> On 4/9/24 11:02, Alexey Dobriyan wrote:
>>> On Mon, Apr 08, 2024 at 11:52:22AM +0530, Chaitanya S Prakash wrote:
>>>> - Add str_has_suffix() and str_has_prefix() to tools/lib/string.c
>>>> - Delete ends_with() and replace its usage with str_has_suffix()
>>>> - Delete strstarts() from tools/include/linux/string.h and replace its
>>>> usage with str_has_prefix()
>>> It should be the other way: starts_with is normal in userspace.
>>> C++, Python, Java, C# all have it. JavaScript too!
>>
>> This is done in accordance with Ian's comments on V1 of this patch
>> series. Please find the link to the same below.
>
> Yes, but str_has_suffix() doesn't make sense in the wider context.
>
>> https://lore.kernel.org/all/CAP-5=fUFmeoTjLuZTgcaV23iGQU1AdddG+7Rw=d6buMU007+1Q@xxxxxxxxxxxxxx/
>
> The naming ends_with makes sense but there is also strstarts and
> str_has_prefix, perhaps str_has_suffix would be the most consistent
> and intention revealing name?
>

Hi Alexey,

>From a brief check it looks like str_has_prefix() is already quite
common with 94 uses. So the path of least resistance is to make
everything self consistent and add str_has_suffix().

I agree it's a bit of a mouthful and not so common in other languages.
Once this more complicated set gets through we could always do a simple
search and replace change it to anything we like. But it would touch
_lots_ of different drivers and trees, so it would be hard to justify.

Thanks
James