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
| ||
|
Date: Thu, 4 Aug 2022 11:14:41 +0800 From: Huacai Chen <chenhuacai@...nel.org> To: Qing Zhang <zhangqing@...ngson.cn> Cc: WANG Xuerui <kernel@...0n.name>, loongarch@...ts.linux.dev, LKML <linux-kernel@...r.kernel.org>, linux-arch <linux-arch@...r.kernel.org>, Jiaxun Yang <jiaxun.yang@...goat.com> Subject: Re: [PATCH] LoongArch: Requires __force attributes for any casts Queued for 5.20, thanks. On Tue, Aug 2, 2022 at 2:09 PM Qing Zhang <zhangqing@...ngson.cn> wrote: > > sudo make C=2 > warning: > arch/loongarch/kernel/ptrace.c: note: in included file (through include/linux/uaccess.h, include/linux/sched/task.h, include/linux/sched/signal.h, include/linux/ptrace.h, include/linux/audit.h): > ./arch/loongarch/include/asm/uaccess.h:232:32: warning: incorrect type in argument 2 (different address spaces) > ./arch/loongarch/include/asm/uaccess.h:232:32: expected void const *from > ./arch/loongarch/include/asm/uaccess.h:232:32: got void const [noderef] __user *from > > Signed-off-by: Qing Zhang <zhangqing@...ngson.cn> > > diff --git a/arch/loongarch/include/asm/uaccess.h b/arch/loongarch/include/asm/uaccess.h > index 2b44edc604a2..a8ae2af4025a 100644 > --- a/arch/loongarch/include/asm/uaccess.h > +++ b/arch/loongarch/include/asm/uaccess.h > @@ -229,13 +229,13 @@ extern unsigned long __copy_user(void *to, const void *from, __kernel_size_t n); > static inline unsigned long __must_check > raw_copy_from_user(void *to, const void __user *from, unsigned long n) > { > - return __copy_user(to, from, n); > + return __copy_user(to, (__force const void *)from, n); > } > > static inline unsigned long __must_check > raw_copy_to_user(void __user *to, const void *from, unsigned long n) > { > - return __copy_user(to, from, n); > + return __copy_user((__force void *)to, from, n); > } > > #define INLINE_COPY_FROM_USER > -- > 2.20.1 > >
Powered by blists - more mailing lists