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Re: [RFC PATCH v1 8/9] arm64: Add unsafe_copy_from_user()
- To: "Christophe Leroy (CS GROUP)" <chleroy@xxxxxxxxxx>
- From: Will Deacon <will@xxxxxxxxxx>
- Date: Wed, 29 Apr 2026 12:26:30 +0100
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- Cc: Yury Norov <ynorov@xxxxxxxxxx>, Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>, Linus Torvalds <torvalds@xxxxxxxxxxxxxxxxxxxx>, David Laight <david.laight.linux@xxxxxxxxx>, Thomas Gleixner <tglx@xxxxxxxxxxxxx>, linux-alpha@xxxxxxxxxxxxxxx, linux-kernel@xxxxxxxxxxxxxxx, linux-snps-arc@xxxxxxxxxxxxxxxxxxx, linux-arm-kernel@xxxxxxxxxxxxxxxxxxx, linux-mips@xxxxxxxxxxxxxxx, linuxppc-dev@xxxxxxxxxxxxxxxx, kvm@xxxxxxxxxxxxxxx, linux-riscv@xxxxxxxxxxxxxxxxxxx, linux-s390@xxxxxxxxxxxxxxx, sparclinux@xxxxxxxxxxxxxxx, linux-um@xxxxxxxxxxxxxxxxxxx, dmaengine@xxxxxxxxxxxxxxx, linux-efi@xxxxxxxxxxxxxxx, linux-fsi@xxxxxxxxxxxxxxxx, amd-gfx@xxxxxxxxxxxxxxxxxxxxx, dri-devel@xxxxxxxxxxxxxxxxxxxxx, intel-gfx@xxxxxxxxxxxxxxxxxxxxx, linux-wpan@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxxxxxx, linux-wireless@xxxxxxxxxxxxxxx, linux-spi@xxxxxxxxxxxxxxx, linux-media@xxxxxxxxxxxxxxx, linux-staging@xxxxxxxxxxxxxxx, linux-serial@xxxxxxxxxxxxxxx, linux-usb@xxxxxxxxxxxxxxx, xen-devel@xxxxxxxxxxxxxxxxxxxx, linux-fsdevel@xxxxxxxxxxxxxxx, ocfs2-devel@xxxxxxxxxxxxxxx, bpf@xxxxxxxxxxxxxxx, kasan-dev@xxxxxxxxxxxxxxxx, linux-mm@xxxxxxxxx, linux-x25@xxxxxxxxxxxxxxx, rust-for-linux@xxxxxxxxxxxxxxx, linux-sound@xxxxxxxxxxxxxxx, sound-open-firmware@xxxxxxxxxxxxxxxx, linux-csky@xxxxxxxxxxxxxxx, linux-hexagon@xxxxxxxxxxxxxxx, loongarch@xxxxxxxxxxxxxxx, linux-m68k@xxxxxxxxxxxxxxxxxxxx, linux-openrisc@xxxxxxxxxxxxxxx, linux-parisc@xxxxxxxxxxxxxxx, linux-sh@xxxxxxxxxxxxxxx, linux-arch@xxxxxxxxxxxxxxx, catalin.marinas@xxxxxxx
- Delivery-date: Wed, 29 Apr 2026 11:27:04 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
[+Catalin]
On Mon, Apr 27, 2026 at 07:13:49PM +0200, Christophe Leroy (CS GROUP) wrote:
> At the time being, x86 and arm64 are missing unsafe_copy_from_user().
>
> Add it.
>
> Signed-off-by: Christophe Leroy (CS GROUP) <chleroy@xxxxxxxxxx>
> ---
> arch/arm64/include/asm/uaccess.h | 29 ++++++++++++++++++++++++-----
> 1 file changed, 24 insertions(+), 5 deletions(-)
Why?
And please cc the arm64 maintainers on arm64 patches next time. You've
managed to cc most of the world apart from us.
Will
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