From: Segher Boessenkool <segher@kernel.crashing.org>
To: Andrew Cooper <andrew.cooper3@citrix.com>
Cc: Yury Norov <ynorov@nvidia.com>,
"Christophe Leroy (CS GROUP)" <chleroy@kernel.org>,
Andrew Morton <akpm@linux-foundation.org>,
Linus Torvalds <torvalds@linux-foundation.org>,
David Laight <david.laight.linux@gmail.com>,
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Subject: Re: [RFC PATCH v1 2/9] uaccess: Convert INLINE_COPY_{TO/FROM}_USER to kconfig and reduce ifdefery
Date: Tue, 28 Apr 2026 06:34:00 -0500 [thread overview]
Message-ID: <afCbKJg_Cq7yNO9j@gate> (raw)
In-Reply-To: <f54c3c2b-33da-42a0-80b7-0f6615d930ce@citrix.com>
On Mon, Apr 27, 2026 at 09:39:33PM +0100, Andrew Cooper wrote:
> On 27/04/2026 7:39 pm, Yury Norov wrote:
> > On Mon, Apr 27, 2026 at 07:13:43PM +0200, Christophe Leroy (CS GROUP) wrote:
> >> Among the 21 architectures supported by the kernel, 16 define both
> >> INLINE_COPY_TO_USER and INLINE_COPY_FROM_USER while the 5 other ones
> >> don't define any of the two.
> >>
> >> To simplify and reduce risk of mistakes, convert them to a single
> >> kconfig item named CONFIG_ARCH_WANTS_NOINLINE_COPY which will be
> > We've got a special word for it: outline. Can you name it
> > CONFIG_OUTLINE_USERCOPY, or similar?
>
> You can't swap the "in" for "out" like this. "out of line" is the
> opposite of "inline" in this context, while "outline" means something
> different and unrelated.
Yeah. Technically much more correct for it is inline vs. functional.
Not that that term won't be misunderstood as well :-)
Segher
next prev parent reply other threads:[~2026-04-28 11:34 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-04-27 17:13 [RFC PATCH v1 0/9] uaccess: Convert small fixed size copy_{to/from}_user() to scoped user access Christophe Leroy (CS GROUP)
2026-04-27 17:13 ` [RFC PATCH v1 1/9] uaccess: Split check_zeroed_user() out of usercopy.c Christophe Leroy (CS GROUP)
2026-04-27 17:13 ` [RFC PATCH v1 2/9] uaccess: Convert INLINE_COPY_{TO/FROM}_USER to kconfig and reduce ifdefery Christophe Leroy (CS GROUP)
2026-04-27 18:39 ` Yury Norov
2026-04-27 20:39 ` Andrew Cooper
2026-04-27 20:47 ` Yury Norov
2026-04-28 9:36 ` Andrew Cooper
2026-04-28 11:34 ` Segher Boessenkool [this message]
2026-04-27 17:13 ` [RFC PATCH v1 3/9] x86/umip: Be stricter in fixup_umip_exception() Christophe Leroy (CS GROUP)
2026-04-27 17:13 ` [RFC PATCH v1 4/9] uaccess: Introduce copy_{to/from}_user_partial() Christophe Leroy (CS GROUP)
2026-04-28 9:25 ` Geert Uytterhoeven
2026-04-27 17:13 ` [RFC PATCH v1 5/9] uaccess: Switch to copy_{to/from}_user_partial() when relevant Christophe Leroy (CS GROUP)
2026-04-27 18:07 ` Alice Ryhl
2026-04-27 19:01 ` Linus Torvalds
2026-04-27 21:29 ` David Laight
2026-04-27 21:39 ` Linus Torvalds
2026-04-27 17:13 ` [RFC PATCH v1 6/9] uaccess: Change copy_{to/from}_user to return -EFAULT Christophe Leroy (CS GROUP)
2026-04-27 17:13 ` [RFC PATCH v1 7/9] x86: Add unsafe_copy_from_user() Christophe Leroy (CS GROUP)
2026-04-27 17:58 ` Yury Norov
2026-04-27 18:20 ` Christophe Leroy (CS GROUP)
2026-04-27 19:19 ` Yury Norov
2026-04-27 21:52 ` Linus Torvalds
2026-04-27 22:30 ` Yury Norov
2026-04-28 11:20 ` Segher Boessenkool
2026-04-27 17:13 ` [RFC PATCH v1 8/9] arm64: " Christophe Leroy (CS GROUP)
2026-04-27 17:13 ` [RFC PATCH v1 9/9] uaccess: Convert small fixed size copy_{to/from}_user() to scoped user access Christophe Leroy (CS GROUP)
2026-04-27 20:12 ` Yury Norov
2026-04-27 19:01 ` [RFC PATCH v1 0/9] " Helge Deller
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