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From: Andreas Schwab <schwab@linux-m68k.org>
To: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Michael Schmitz <schmitzmic@gmail.com>,
	Geert Uytterhoeven <geert@linux-m68k.org>,
	linux-m68k <linux-m68k@lists.linux-m68k.org>,
	Christoph Hellwig <hch@lst.de>
Subject: Re: [PATCH RFC v2] m68k: remove get_fs()/set_fs()
Date: Thu, 08 Jul 2021 09:36:09 +0200	[thread overview]
Message-ID: <87lf6hmf4m.fsf@igel.home> (raw)
In-Reply-To: <CAHk-=wgCp0X4Q=GkDF1j1=_XTq4gA_ZsKUXfkPBeeTJcoS6gwQ@mail.gmail.com> (Linus Torvalds's message of "Wed, 7 Jul 2021 20:01:33 -0700")

On Jul 07 2021, Linus Torvalds wrote:

> Christoph does:
>
>    #define __put_user_asm(inst, res, x, ptr, bwl, reg)    \
>    asm volatile ("\n"                                     \
>           "1:     #inst."#bwl"    %2,%1\n"
>    ...
>
> and then uses it with code like
>
>                 __put_user_asm(MOVES, __pu_err, __pu_val, ptr, b, d);
>
> and
>
>                 __get_user_asm("move", __gk_err, __gk_dst, __gk_src, u8, b, d);
>
> and the issue is that there's a '#' too many.
>
> The '#' turns the argument into a string,

No, it's inside a string, and the assembler just sees a comment starting
with `#inst.'.

Andreas.

-- 
Andreas Schwab, schwab@linux-m68k.org
GPG Key fingerprint = 7578 EB47 D4E5 4D69 2510  2552 DF73 E780 A9DA AEC1
"And now for something completely different."

  parent reply	other threads:[~2021-07-08  7:36 UTC|newest]

Thread overview: 31+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-07-08  1:48 [PATCH RFC v2] m68k: remove get_fs()/set_fs() Michael Schmitz
2021-07-08  2:51 ` Linus Torvalds
2021-07-08  3:01   ` Linus Torvalds
2021-07-08  3:37     ` Michael Schmitz
2021-07-08  4:31     ` Christoph Hellwig
2021-07-08  4:33       ` Michael Schmitz
2021-07-08  4:58         ` Christoph Hellwig
2021-07-08  5:48           ` Michael Schmitz
2021-07-08 12:57             ` Christoph Hellwig
2021-07-08 18:20               ` Linus Torvalds
2021-07-09  0:05                 ` Michael Schmitz
2021-07-08 19:28               ` Michael Schmitz
2021-07-09  0:31                 ` Michael Schmitz
2021-07-09  4:22                   ` Christoph Hellwig
2021-07-09  5:47                     ` Michael Schmitz
2021-07-09  7:29                     ` Geert Uytterhoeven
2021-07-09  8:34                       ` Michael Schmitz
2021-07-09  8:53                         ` Christoph Hellwig
2021-07-09  9:00                           ` Michael Schmitz
2021-07-09 11:20                             ` Geert Uytterhoeven
2021-07-09 19:25                               ` Michael Schmitz
2021-07-09 19:52                                 ` Michael Schmitz
2021-07-09 20:03                                   ` Linus Torvalds
2021-07-09 20:13                                     ` Linus Torvalds
2021-07-09 19:53                                 ` Linus Torvalds
2021-07-09 21:08                                   ` Michael Schmitz
2021-07-09 21:18                                     ` Linus Torvalds
2021-07-10  2:30                                       ` Michael Schmitz
2021-07-09 11:35                           ` Geert Uytterhoeven
2021-07-08  7:36     ` Andreas Schwab [this message]
2021-07-08  4:28   ` Christoph Hellwig

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