Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse

[PATCH v6 00/11] arm64: untag user pointers passed to the kernel · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 01/11] arm64: add type casts to untagged_addr macro · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 02/11] uaccess: add untagged_addr definition for other arches · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 04/11] mm, arm64: untag user addresses in mm/gup.c · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 05/11] lib, arm64: untag addrs passed to strncpy_from_user and strnlen_user · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 06/11] arm64: untag user address in __do_user_fault · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 08/11] usb, arm64: untag user addresses in devio · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 09/11] arm64: update Documentation/arm64/tagged-pointers.txt · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 10/11] selftests, arm64: add a selftest for passing tagged pointers to kernel · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Andrey Konovalov <hidden> · 2018-08-30
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Luc Van Oostenryck <hidden> · 2018-08-31
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Al Viro <viro@ZenIV.linux.org.uk> · 2018-08-31
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Andrey Konovalov <hidden> · 2018-09-03
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2018-09-03
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Luc Van Oostenryck <hidden> · 2018-09-03
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2018-09-04
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Luc Van Oostenryck <hidden> · 2018-09-05
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Vincenzo Frascino <vincenzo.frascino@arm.com> · 2018-09-06
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Luc Van Oostenryck <hidden> · 2018-09-06
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Al Viro <viro@ZenIV.linux.org.uk> · 2018-09-03
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Linus Torvalds <torvalds@linux-foundation.org> · 2018-09-06
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Linus Torvalds <torvalds@linux-foundation.org> · 2018-09-06
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Luc Van Oostenryck <hidden> · 2018-09-06
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Catalin Marinas <catalin.marinas@arm.com> · 2018-09-07
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Linus Torvalds <torvalds@linux-foundation.org> · 2018-09-07
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Catalin Marinas <catalin.marinas@arm.com> · 2018-09-11
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Andrey Konovalov <hidden> · 2018-09-17
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Andrey Konovalov <hidden> · 2018-09-24
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Catalin Marinas <catalin.marinas@arm.com> · 2018-09-28
Re: [PATCH v6 11/11] arm64: annotate user pointers casts detected by sparse · Andrey Konovalov <hidden> · 2018-10-02
[PATCH v6 07/11] fs, arm64: untag user address in copy_mount_options · Andrey Konovalov <hidden> · 2018-08-30
[PATCH v6 03/11] arm64: untag user addresses in access_ok and __uaccess_mask_ptr · Andrey Konovalov <hidden> · 2018-08-30
Re: [PATCH v6 00/11] arm64: untag user pointers passed to the kernel · Andrey Konovalov <hidden> · 2018-08-30

From: Luc Van Oostenryck <hidden>
Date: 2018-08-31 08:11:31
Also in: linux-arch, linux-arm-kernel, linux-kselftest, linux-mm, lkml

On Thu, Aug 30, 2018 at 01:41:16PM +0200, Andrey Konovalov wrote:

This patch adds __force annotations for __user pointers casts detected by
sparse with the -Wcast-from-as flag enabled (added in [1]).

[1] https://github.com/lucvoo/sparse-dev/commit/5f960cb10f56ec2017c128ef9d16060e0145f292

Hi,

It would be nice to have some explanation for why these added __force
are useful.

-- Luc Van Oostenryck

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