linux-kernel - Re: [PATCH 2/3] nios2: Cleanup deprecated function strlen

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Message-ID: <CAK8P3a1aNDomNiX7W1USWnmdw1VR21ALX7NvJYGW9LBO+jvA4A@mail.gmail.com>
Date:   Tue, 20 Apr 2021 16:32:33 +0200
From:   Arnd Bergmann <arnd@...db.de>
To:     Guo Ren <guoren@...nel.org>
Cc:     linux-riscv <linux-riscv@...ts.infradead.org>,
        Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
        linux-csky@...r.kernel.org,
        linux-arch <linux-arch@...r.kernel.org>,
        Guo Ren <guoren@...ux.alibaba.com>
Subject: Re: [PATCH 2/3] nios2: Cleanup deprecated function strlen_user

On Tue, Apr 20, 2021 at 3:37 PM <guoren@...nel.org> wrote:
>
> From: Guo Ren <guoren@...ux.alibaba.com>
>
> $ grep strlen_user * -r
> arch/csky/include/asm/uaccess.h:#define strlen_user(str) strnlen_user(str, 32767)
> arch/csky/lib/usercopy.c: * strlen_user: - Get the size of a string in user space.
> arch/ia64/lib/strlen.S: // Please note that in the case of strlen() as opposed to strlen_user()
> arch/mips/lib/strnlen_user.S: *  make strlen_user and strnlen_user access the first few KSEG0
> arch/nds32/include/asm/uaccess.h:extern __must_check long strlen_user(const char __user * str);
> arch/nios2/include/asm/uaccess.h:extern __must_check long strlen_user(const char __user *str);
> arch/riscv/include/asm/uaccess.h:extern long __must_check strlen_user(const char __user *str);
> kernel/trace/trace_probe_tmpl.h:static nokprobe_inline int fetch_store_strlen_user(unsigned long addr);
> kernel/trace/trace_probe_tmpl.h:                        ret += fetch_store_strlen_user(val + code->offset);
> kernel/trace/trace_uprobe.c:fetch_store_strlen_user(unsigned long addr)
> kernel/trace/trace_kprobe.c:fetch_store_strlen_user(unsigned long addr)
> kernel/trace/trace_kprobe.c:            return fetch_store_strlen_user(addr);

I would suggest using "grep strlen_user * -rw", to let the whole-word match
filter out the irrelevant ones for the changelog.

> See grep result, nobody uses it.
>
> Signed-off-by: Guo Ren <guoren@...ux.alibaba.com>
> Cc: Arnd Bergmann <arnd@...db.de>

All three patches

Reviewed-by: Arnd Bergmann <arnd@...db.de>

Do you want me to pick them up in the asm-generic tree?