From: Al Viro <viro@zeniv.linux.org.uk>
To: Greg KH <greg@kroah.com>
Cc: Nick Desaulniers <ndesaulniers@google.com>,
tanzirh@google.com, Kees Cook <keescook@chromium.org>,
Andy Shevchenko <andy@kernel.org>,
linux-hardening@vger.kernel.org, linux-kernel@vger.kernel.org,
Nick DeSaulniers <nnn@google.com>,
Andrew Morton <akpm@linux-foundation.org>,
llvm@lists.linux.dev
Subject: Re: [PATCH] lib/string: shrink lib/string.i via IWYU
Date: Wed, 6 Dec 2023 00:55:42 +0000 [thread overview]
Message-ID: <20231206005542.GJ1674809@ZenIV> (raw)
In-Reply-To: <2023120657-henna-spongy-9ef6@gregkh>
On Wed, Dec 06, 2023 at 08:46:50AM +0900, Greg KH wrote:
> > >
> > > But of course, it doesn't always hold true, there are a few minor
> > > exceptions, but they are rare.
> >
> > $ grep -r \\#include lib | grep asm
> >
> > shows quite a few exceptions, and just in lib/.
> >
> > For example, lib/math/int_log.c includes asm/bug.h. Is that a case
> > where lib/math/int_log.c should be #include 'ing linux/bug.h rather
> > than asm/bug.h?
>
> Probably yes, but we don't normally go back and take coding style fixes
> for old files like this as it doesn't make much sense to do so.
>
> But, if you are cleaning up the headers for large portions with the goal
> of faster builds, that's a good reason.
FWIW, the most common (by far - about 13% of such includes, over drivers/, fs/,
mm/, net/ and sound/) is asm/unaligned.h.
The next are asm/io.h (10%), asm/byteorder.h (6%), asm/irq.h (5%), asm/div64.h (3%),
asm/page.h and asm/dma.h (2% each). The rest is below that (the next is a bit over
1%).
In fs/* unaligned.h is again the top one (37 out of 139), followed by
byteorder.h (30 out of 139), div64.h (12), page.h (10) and then comes random
shite - I do not believe that fs/coda/psdev.c might have a legitimate
reason to pull asm/io.h, for one thing...
next prev parent reply other threads:[~2023-12-06 0:55 UTC|newest]
Thread overview: 35+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-12-05 20:58 [PATCH] lib/string: shrink lib/string.i via IWYU tanzirh
2023-12-05 21:04 ` Andrew Morton
2023-12-05 21:14 ` Nick Desaulniers
2023-12-05 21:24 ` Andrew Morton
2023-12-05 21:39 ` Nick Desaulniers
2023-12-05 21:43 ` Al Viro
2023-12-05 21:57 ` Nick Desaulniers
2023-12-11 20:47 ` Nick Desaulniers
2023-12-11 20:50 ` Andy Shevchenko
2023-12-05 21:53 ` Andy Shevchenko
2023-12-05 22:05 ` Nick Desaulniers
2023-12-07 6:25 ` Christoph Hellwig
2023-12-05 21:38 ` Al Viro
2023-12-05 21:51 ` Nick Desaulniers
2023-12-05 21:59 ` Greg KH
2023-12-05 22:14 ` Nick Desaulniers
2023-12-05 23:46 ` Greg KH
2023-12-06 0:55 ` Al Viro [this message]
2023-12-06 3:00 ` Al Viro
2023-12-06 3:09 ` Greg KH
2023-12-14 21:04 ` Al Viro
2023-12-15 21:03 ` Al Viro
2023-12-07 12:50 ` Andy Shevchenko
2023-12-05 22:01 ` Andy Shevchenko
2023-12-05 22:10 ` Randy Dunlap
2023-12-05 22:25 ` Nick Desaulniers
2023-12-05 22:15 ` Al Viro
2023-12-05 22:20 ` Nick Desaulniers
2023-12-05 22:32 ` Al Viro
2023-12-07 12:52 ` Andy Shevchenko
2023-12-05 21:57 ` Al Viro
2023-12-05 21:50 ` Andy Shevchenko
2023-12-05 22:05 ` Andy Shevchenko
2023-12-06 7:10 ` kernel test robot
2023-12-07 12:55 ` Andy Shevchenko
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