Re: [PATCH 00/28] Replace remaining strlcat() call sites with snprintf()/seq_buf()

[Takashi Iwai]

On Tue, 15 Sep 2026 10:18:17 +0200,
Bill Wendling wrote:
> 
> strlcat() is deprecated: like strcat(), it requires re-scanning the
> destination string from the beginning on every call, which is O(n^2)
> when used to build up a string incrementally, and its truncation
> behavior is easy to get wrong.

... but what many of your patches do is to replace strlcat() with
open-codes, which is more error-prone and easier to get wrong than
a single strlcat() call.

> See:
> 
>   https://github.com/KSPP/linux/issues/370

It's clear that strlcat() isn't perfect and sometimes inefficient.
But blindly deprecating without providing a good alternative doesn't
sound like a right approach to me.


thanks,

Takashi