[PATCH] linux/time32.h: correct ns_to_kernel_old_timeval prototype

[PATCH] linux/time32.h: correct ns_to_kernel_old_timeval prototype

[Chanho Park]

The function argument is defined with const identifier in
kernel/time/time.c but the prototype looks different between time.c and
time32.h. There is a review[1] why it was omitted during review stage but
they should be matched.

- The function is defined in kernel/time/time.c as below:
struct __kernel_old_timeval ns_to_kernel_old_timeval(const s64 nsec)

[1]: https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1637458.html
Fixes: a84d1169164b ("y2038: Introduce struct __kernel_old_timeval")
Signed-off-by: Chanho Park <chanho61.park@samsung.com>
---
 include/linux/time32.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/linux/time32.h b/include/linux/time32.h
index 83a400b6ba99..88c135d4c557 100644
--- a/include/linux/time32.h
+++ b/include/linux/time32.h
@@ -67,6 +67,6 @@ int put_old_timex32(struct old_timex32 __user *, const struct __kernel_timex *);
  *
  * Returns the timeval representation of the nsec parameter.
  */
-extern struct __kernel_old_timeval ns_to_kernel_old_timeval(s64 nsec);
+extern struct __kernel_old_timeval ns_to_kernel_old_timeval(const s64 nsec);
 
 #endif
-- 
2.36.1

Re: [PATCH] linux/time32.h: correct ns_to_kernel_old_timeval prototype

[Arnd Bergmann]

On Tue, May 31, 2022 at 8:43 AM Chanho Park <chanho61.park@samsung.com> wrote:
>
> The function argument is defined with const identifier in
> kernel/time/time.c but the prototype looks different between time.c and
> time32.h. There is a review[1] why it was omitted during review stage but
> they should be matched.

Thanks for report and the patch!

Since the 'const' keyword is still useless here, I would suggest
instead dropping
it from the function definition where I accidentally left it, and from the
related ns_to_timespec64() as well, both its declaration and definition.

       Arnd