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authorChristoph Hellwig <hch@lst.de>2020-06-08 21:34:20 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2020-06-09 09:39:15 -0700
commit02dddb160ec1dccb51e75f3113654a090bc3963a (patch)
tree2ea80889a6ac1af4d7fcf50d11f15a661112d674
parentc4cb164426aebd635baa53685b0ebf1a127e9803 (diff)
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 <hch@lst.de> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Daniel Borkmann <daniel@iogearbox.net> Cc: "H. Peter Anvin" <hpa@zytor.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Masami Hiramatsu <mhiramat@kernel.org> Cc: Thomas Gleixner <tglx@linutronix.de> Link: http://lkml.kernel.org/r/20200521152301.2587579-9-hch@lst.de Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
-rw-r--r--include/linux/uaccess.h2
-rw-r--r--kernel/trace/trace_kprobe.c2
-rw-r--r--mm/maccess.c4
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;