[PATCH 07/15] maccess: rename strncpy_from_unsafe_strict to strncpy_from_kernel_unsafe

From: Christoph Hellwig
Date: Wed May 06 2020 - 02:22:51 EST


This matches the convention of always having _unsafe as a suffix, as
well as match the naming of strncpy_from_user_unsafe.

Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
arch/x86/mm/maccess.c | 2 +-
include/linux/uaccess.h | 2 +-
kernel/trace/bpf_trace.c | 2 +-
mm/maccess.c | 6 +++---
4 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/x86/mm/maccess.c b/arch/x86/mm/maccess.c
index f5b85bdc0535c..6290e9894fb55 100644
--- a/arch/x86/mm/maccess.c
+++ b/arch/x86/mm/maccess.c
@@ -34,7 +34,7 @@ long probe_kernel_read_strict(void *dst, const void *src, size_t size)
return __probe_kernel_read(dst, src, size);
}

-long strncpy_from_unsafe_strict(char *dst, const void *unsafe_addr, long count)
+long strncpy_from_kernel_unsafe(char *dst, const void *unsafe_addr, long count)
{
if (unlikely(invalid_probe_range((unsigned long)unsafe_addr)))
return -EFAULT;
diff --git a/include/linux/uaccess.h b/include/linux/uaccess.h
index 74db16fac2a04..221d703480b6e 100644
--- a/include/linux/uaccess.h
+++ b/include/linux/uaccess.h
@@ -310,7 +310,7 @@ extern long notrace probe_kernel_write(void *dst, const void *src, size_t size);
extern long notrace probe_user_write(void __user *dst, const void *src, size_t size);

extern long strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count);
-extern long strncpy_from_unsafe_strict(char *dst, const void *unsafe_addr,
+extern long strncpy_from_kernel_unsafe(char *dst, const void *unsafe_addr,
long count);
extern long __strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count);
extern long strncpy_from_user_unsafe(char *dst, const void __user *unsafe_addr,
diff --git a/kernel/trace/bpf_trace.c b/kernel/trace/bpf_trace.c
index d3989384e515d..e4e202f433903 100644
--- a/kernel/trace/bpf_trace.c
+++ b/kernel/trace/bpf_trace.c
@@ -240,7 +240,7 @@ bpf_probe_read_kernel_str_common(void *dst, u32 size, const void *unsafe_ptr,
* is returned that can be used for bpf_perf_event_output() et al.
*/
ret = compat ? strncpy_from_unsafe(dst, unsafe_ptr, size) :
- strncpy_from_unsafe_strict(dst, unsafe_ptr, size);
+ strncpy_from_kernel_unsafe(dst, unsafe_ptr, size);
if (unlikely(ret < 0))
out:
memset(dst, 0, size);
diff --git a/mm/maccess.c b/mm/maccess.c
index 76f9d4dd51300..683b70518a896 100644
--- a/mm/maccess.c
+++ b/mm/maccess.c
@@ -159,7 +159,7 @@ long probe_user_write(void __user *dst, const void *src, size_t size)
* If @count is smaller than the length of the string, copies @count-1 bytes,
* sets the last byte of @dst buffer to NUL and returns @count.
*
- * Same as strncpy_from_unsafe_strict() except that for architectures with
+ * Same as strncpy_from_kernel_unsafe() except that for architectures with
* not fully separated user and kernel address spaces this function also works
* for user address tanges.
*
@@ -170,7 +170,7 @@ long __weak strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count)
__attribute__((alias("__strncpy_from_unsafe")));

/**
- * strncpy_from_unsafe_strict: - Copy a NUL terminated string from unsafe
+ * strncpy_from_kernel_unsafe: - Copy a NUL terminated string from unsafe
* address.
* @dst: Destination address, in kernel space. This buffer must be at
* least @count bytes long.
@@ -187,7 +187,7 @@ long __weak strncpy_from_unsafe(char *dst, const void *unsafe_addr, long count)
* If @count is smaller than the length of the string, copies @count-1 bytes,
* sets the last byte of @dst buffer to NUL and returns @count.
*/
-long __weak strncpy_from_unsafe_strict(char *dst, const void *unsafe_addr,
+long __weak strncpy_from_kernel_unsafe(char *dst, const void *unsafe_addr,
long count)
__attribute__((alias("__strncpy_from_unsafe")));

--
2.26.2