From 02dddb160ec1dccb51e75f3113654a090bc3963a Mon Sep 17 00:00:00 2001 From: Christoph Hellwig Date: Mon, 8 Jun 2020 21:34:20 -0700 Subject: [PATCH] maccess: rename strnlen_unsafe_user to strnlen_user_nofault This matches the naming of strnlen_user, and also makes it more clear what the function is supposed to do. Signed-off-by: Christoph Hellwig Signed-off-by: Andrew Morton Cc: Alexei Starovoitov Cc: Daniel Borkmann Cc: "H. Peter Anvin" Cc: Ingo Molnar Cc: Masami Hiramatsu Cc: Thomas Gleixner Link: http://lkml.kernel.org/r/20200521152301.2587579-9-hch@lst.de Signed-off-by: Linus Torvalds --- include/linux/uaccess.h | 2 +- kernel/trace/trace_kprobe.c | 2 +- mm/maccess.c | 4 ++-- 3 files changed, 4 insertions(+), 4 deletions(-) diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h index d9ae3c69802d..575cc308d98b 100644 --- a/include/linux/uaccess.h +++ b/include/linux/uaccess.h @@ -315,7 +315,7 @@ long strncpy_from_kernel_nofault(char *dst, const void *unsafe_addr, extern long __strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count); long strncpy_from_user_nofault(char *dst, const void __user *unsafe_addr, long count); -extern long strnlen_unsafe_user(const void __user *unsafe_addr, long count); +long strnlen_user_nofault(const void __user *unsafe_addr, long count); /** * probe_kernel_address(): safely attempt to read from a location diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c index d600f41fda1c..4325f9e7fada 100644 --- a/kernel/trace/trace_kprobe.c +++ b/kernel/trace/trace_kprobe.c @@ -1221,7 +1221,7 @@ fetch_store_strlen_user(unsigned long addr) { const void __user *uaddr = (__force const void __user *)addr; - return strnlen_unsafe_user(uaddr, MAX_STRING_SIZE); + return strnlen_user_nofault(uaddr, MAX_STRING_SIZE); } /* diff --git a/mm/maccess.c b/mm/maccess.c index 50b27fbe5cf8..88ab30c054a9 100644 --- a/mm/maccess.c +++ b/mm/maccess.c @@ -260,7 +260,7 @@ long strncpy_from_user_nofault(char *dst, const void __user *unsafe_addr, } /** - * strnlen_unsafe_user: - Get the size of a user string INCLUDING final NUL. + * strnlen_user_nofault: - Get the size of a user string INCLUDING final NUL. * @unsafe_addr: The string to measure. * @count: Maximum count (including NUL) * @@ -275,7 +275,7 @@ long strncpy_from_user_nofault(char *dst, const void __user *unsafe_addr, * Unlike strnlen_user, this can be used from IRQ handler etc. because * it disables pagefaults. */ -long strnlen_unsafe_user(const void __user *unsafe_addr, long count) +long strnlen_user_nofault(const void __user *unsafe_addr, long count) { mm_segment_t old_fs = get_fs(); int ret; -- GitLab