On Tue, Apr 20, 2021 at 3:37 PM [off-list ref] wrote:

From: Guo Ren <redacted>

$ 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 <redacted>
Cc: Arnd Bergmann <arnd@arndb.de>

All three patches

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

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