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From: Nick Desaulniers <ndesaulniers@google.com>
To: Matthew Wilcox <willy@infradead.org>
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Miguel Ojeda <miguel.ojeda.sandonis@gmail.com>,
	Miguel Ojeda <ojeda@kernel.org>,
	Linus Torvalds <torvalds@linux-foundation.org>,
	rust-for-linux <rust-for-linux@vger.kernel.org>,
	Linux Kbuild mailing list <linux-kbuild@vger.kernel.org>,
	Linux Doc Mailing List <linux-doc@vger.kernel.org>,
	linux-kernel <linux-kernel@vger.kernel.org>,
	Gary Guo <gary@garyguo.net>, Alex Gaynor <alex.gaynor@gmail.com>,
	Wedson Almeida Filho <wedsonaf@google.com>
Subject: Re: [PATCH 11/19] vsprintf: add new `%pA` format specifier
Date: Mon, 6 Dec 2021 12:02:14 -0800	[thread overview]
Message-ID: <CAKwvOdnSSkRO0n8-Bz_ACcqsoctyv4MkALG1n75p4rQoNfrMuQ@mail.gmail.com> (raw)
In-Reply-To: <Ya5qrjabKMM6sPr+@casper.infradead.org>

On Mon, Dec 6, 2021 at 11:55 AM Matthew Wilcox <willy@infradead.org> wrote:
>
> On Mon, Dec 06, 2021 at 11:52:09AM -0800, Nick Desaulniers wrote:
> > On Mon, Dec 6, 2021 at 8:14 AM Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> > >
> > > On Mon, Dec 06, 2021 at 04:56:32PM +0100, Miguel Ojeda wrote:
> > > > On Mon, Dec 6, 2021 at 4:46 PM Greg Kroah-Hartman
> > > > <gregkh@linuxfoundation.org> wrote:
> > > > >
> > > > > That should be in a .h file somewhere.  Remember, don't put #ifdef in .c
> > > > > files please.
> >
> > Why not put #ifdef in .c files?
> >
> > > > Will do, thanks for reviewing!
> > > >
> > > > > Same here, this should not be needed if you put it in a .h file
> > > > > correctly.
> >
> > I guess IS_ENABLED could be used in the .c code, but I don't see how
> > they could move the dispatch to rust_fmt_argument to a header without
> > moving the definition of pointer() to a header, which they probably
> > _cant_ do because it's noinline_for_stack.
>
> In the header file, you put:
>
> #ifdef CONFIG_FOO
> int foo(void);
> #else
> static inline int foo(void) { }
> #endif
>
> and then in your .c file, you call foo() unconditionally, and everything
> works beautifully.
>

Ah, that is nice, thanks!

-- 
Thanks,
~Nick Desaulniers

  reply	other threads:[~2021-12-06 20:02 UTC|newest]

Thread overview: 39+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-12-06 14:02 [PATCH 00/19] Rust support Miguel Ojeda
2021-12-06 14:02 ` [PATCH 01/19] kallsyms: support "big" kernel symbols Miguel Ojeda
2021-12-06 14:18   ` Matthew Wilcox
2021-12-06 17:00     ` Miguel Ojeda
2021-12-06 14:02 ` [PATCH 02/19] kallsyms: increase maximum kernel symbol length to 512 Miguel Ojeda
2021-12-06 14:02 ` [PATCH 03/19] kallsyms: use the correct buffer size for symbols Miguel Ojeda
2021-12-06 14:02 ` [PATCH 04/19] rust: add C helpers Miguel Ojeda
2021-12-06 14:02 ` [PATCH 05/19] rust: add `compiler_builtins` crate Miguel Ojeda
2021-12-07 23:01   ` Nick Desaulniers
2021-12-09 19:34     ` Miguel Ojeda
2021-12-06 14:03 ` [PATCH 07/19] rust: add `build_error` crate Miguel Ojeda
2021-12-06 14:03 ` [PATCH 08/19] rust: add `macros` crate Miguel Ojeda
2021-12-06 14:03 ` [PATCH 10/19] rust: export generated symbols Miguel Ojeda
2021-12-06 14:03 ` [PATCH 11/19] vsprintf: add new `%pA` format specifier Miguel Ojeda
2021-12-06 15:02   ` Greg Kroah-Hartman
2021-12-06 15:56     ` Miguel Ojeda
2021-12-06 16:02       ` Greg Kroah-Hartman
2021-12-06 19:52         ` Nick Desaulniers
2021-12-06 19:55           ` Matthew Wilcox
2021-12-06 20:02             ` Nick Desaulniers [this message]
2021-12-06 14:03 ` [PATCH 12/19] scripts: add `generate_rust_analyzer.py` Miguel Ojeda
2021-12-06 14:03 ` [PATCH 13/19] scripts: decode_stacktrace: demangle Rust symbols Miguel Ojeda
2021-12-06 14:03 ` [PATCH 14/19] docs: add Rust documentation Miguel Ojeda
2021-12-08  1:29   ` Nick Desaulniers
2021-12-08 23:07     ` Miguel Ojeda
2021-12-06 14:03 ` [PATCH 15/19] Kbuild: add Rust support Miguel Ojeda
2021-12-07 22:45   ` Nick Desaulniers
2021-12-07 23:21     ` Nick Desaulniers
2021-12-07 23:25       ` Wedson Almeida Filho
2021-12-08  0:05         ` Nick Desaulniers
2021-12-08 22:52     ` Miguel Ojeda
2021-12-11 15:53   ` Masahiro Yamada
2022-01-17  4:45     ` Miguel Ojeda
2021-12-06 14:03 ` [PATCH 16/19] samples: add Rust examples Miguel Ojeda
2021-12-06 14:03 ` [PATCH 17/19] MAINTAINERS: Rust Miguel Ojeda
2021-12-06 14:03 ` [RFC PATCH 18/19] drivers: gpio: PrimeCell PL061 in Rust Miguel Ojeda
     [not found] ` <20211206140313.5653-20-ojeda@kernel.org>
2021-12-06 15:01   ` [RFC PATCH 19/19] drivers: android: Binder IPC " Greg Kroah-Hartman
2021-12-06 15:59     ` Wedson Almeida Filho
2021-12-06 16:02       ` Greg Kroah-Hartman

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