From: Bradley Morgan <brads@mainlining.org>
To: ruanjinjie@huawei.com
Cc: akpm@linux-foundation.org, aleksey.oladko@virtuozzo.com,
alexjlzheng@tencent.com, blbllhy@gmail.com, brauner@kernel.org,
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jmorris@namei.org, juri.lelli@redhat.com, kees@kernel.org,
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peterz@infradead.org, pjw@kernel.org, rostedt@goodmis.org,
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surenb@google.com, tglx@kernel.org, vbabka@kernel.org,
vincent.guittot@linaro.org, vschneid@redhat.com
Subject: Re: [RFC PATCH v2 1/3] capability: Move mk_kernel_cap() to header
Date: Tue, 29 Sep 2026 18:15:14 +0100 [thread overview]
Message-ID: <0F8FF4D1-8736-4ACB-9436-37E44517F0C3@mainlining.org> (raw)
In-Reply-To: <20260929130200.1638343-2-ruanjinjie@huawei.com>
On 29 September 2026 14:01:58 BST, Jinjie Ruan <ruanjinjie@huawei.com>
wrote:
>Move mk_kernel_cap() from capability.c to the capability header file
>so that it can be reused by other security modules.
>
Fair enoughh
Reviewed-by: Bradley Morgan <brads@mainlining.org>
>No functional change.
>
>Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
>---
> include/linux/capability.h | 5 +++++
> kernel/capability.c | 5 -----
> 2 files changed, 5 insertions(+), 5 deletions(-)
>
>diff --git a/include/linux/capability.h b/include/linux/capability.h
>index f8532d92fcad..7921a0b3b04a 100644
>--- a/include/linux/capability.h
>+++ b/include/linux/capability.h
>@@ -114,6 +114,11 @@ static inline bool cap_issubset(const kernel_cap_t a, const kernel_cap_t set)
> return !(a.val & ~set.val);
> }
>
>+static inline kernel_cap_t mk_kernel_cap(u32 low, u32 high)
>+{
>+ return (kernel_cap_t) { (low | ((u64)high << 32)) & CAP_VALID_MASK };
>+}
>+
> /* Used to decide between falling back on the old suser() or fsuser(). */
>
> static inline kernel_cap_t cap_drop_fs_set(const kernel_cap_t a)
>diff --git a/kernel/capability.c b/kernel/capability.c
>index 90e6ab62f6db..0b8ec26ead0e 100644
>--- a/kernel/capability.c
>+++ b/kernel/capability.c
>@@ -190,11 +190,6 @@ SYSCALL_DEFINE2(capget, cap_user_header_t, header, cap_user_data_t, dataptr)
> return 0;
> }
>
>-static kernel_cap_t mk_kernel_cap(u32 low, u32 high)
>-{
>- return (kernel_cap_t) { (low | ((u64)high << 32)) & CAP_VALID_MASK };
>-}
>-
> /**
> * sys_capset - set capabilities for a process or (*) a group of processes
> * @header: pointer to struct that contains capability version and
>
--- Thanks!
"I'm not a very positive person" - Linus torvalds
next prev parent reply other threads:[~2026-09-29 17:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2026-09-29 13:01 [RFC PATCH v2 0/3] security: Add PR_CAPBSET_DROP_MASK Jinjie Ruan
2026-09-29 13:01 ` [RFC PATCH v2 1/3] capability: Move mk_kernel_cap() to header Jinjie Ruan
2026-09-29 13:06 ` sashiko-bot
2026-09-29 17:15 ` Bradley Morgan [this message]
2026-09-29 13:01 ` [RFC PATCH v2 2/3] security: Add PR_CAPBSET_DROP_MASK for process-wide bounding-set drops Jinjie Ruan
2026-09-29 13:19 ` sashiko-bot
2026-09-29 13:02 ` [RFC PATCH v2 3/3] selftests: prctl: add process-wide bounding-set drop tests Jinjie Ruan
2026-09-29 13:11 ` sashiko-bot
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