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From:   Bartosz Golaszewski <brgl@bgdev.pl>
Date:   Mon, 14 Aug 2023 09:24:44 +0200
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Subject: Re: [PATCH v3 03/57] locking: Introduce __cleanup() based infrastructure
To:     Peter Zijlstra <peterz@infradead.org>
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On Mon, Jun 12, 2023 at 11:56=E2=80=AFAM Peter Zijlstra <peterz@infradead.o=
rg> wrote:
>

[snip]

> --- a/include/linux/slab.h
> +++ b/include/linux/slab.h
> @@ -17,6 +17,7 @@
>  #include <linux/types.h>
>  #include <linux/workqueue.h>
>  #include <linux/percpu-refcount.h>
> +#include <linux/cleanup.h>
>
>
>  /*
> @@ -211,6 +212,8 @@ void kfree(const void *objp);
>  void kfree_sensitive(const void *objp);
>  size_t __ksize(const void *objp);
>
> +DEFINE_FREE(kfree, void *, if (_T) kfree(_T))
> +

Peter,

Yuri Norov pointed out to me (under a different cleanup patch) that
kfree() handles NULL-pointers and there's no reason to check it again
in DEFINE_FREE() macros. It seems right to me but I wanted to run it
by you and check if there is maybe some reason I'm not seeing to doing
it?

Bartosz

[snip]