linux-kernel - [PATCH] ipc/shm: uapi: remove dependency on libc

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite for Android: free password hash cracker in your pocket

[<prev] [next>] [day] [month] [year] [list]

Message-Id: <20251222-uapi-shm-v1-1-270bb7f75d97@linutronix.de>
Date: Mon, 22 Dec 2025 08:55:10 +0100
From: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
To: Andrew Morton <akpm@...ux-foundation.org>
Cc: Arnd Bergmann <arnd@...db.de>, linux-kernel@...r.kernel.org, 
 Thomas Weißschuh <thomas.weissschuh@...utronix.de>
Subject: [PATCH] ipc/shm: uapi: remove dependency on libc

Using libc types and headers from the UAPI headers is problematic as it
introduces a dependency on a full C toolchain. shm.h does not even use
any symbols from the libc header as the usage of getpagesize() was
removed a decade ago in commit 060028bac94b ("ipc/shm.c: increase the
defaults for SHMALL, SHMMAX")

Drop the unnecessary inclusion.

Signed-off-by: Thomas Weißschuh <thomas.weissschuh@...utronix.de>
---
 include/uapi/linux/shm.h | 3 ---
 1 file changed, 3 deletions(-)

diff --git a/include/uapi/linux/shm.h b/include/uapi/linux/shm.h
index 8d1f17a4e08e..7269f9f402e3 100644
--- a/include/uapi/linux/shm.h
+++ b/include/uapi/linux/shm.h
@@ -5,9 +5,6 @@
 #include <linux/ipc.h>
 #include <linux/errno.h>
 #include <asm-generic/hugetlb_encode.h>
-#ifndef __KERNEL__
-#include <unistd.h>
-#endif
 
 /*
  * SHMMNI, SHMMAX and SHMALL are default upper limits which can be

---
base-commit: 8f0b4cce4481fb22653697cced8d0d04027cb1e8
change-id: 20251222-uapi-shm-d96df0ff7366

Best regards,
-- 
Thomas Weißschuh <thomas.weissschuh@...utronix.de>