On Fri, Jul 30, 2021 at 03:21:03PM +0200, Fabio Aiuto wrote:

BIT(x) macro used all over the driver is defined in
include/vsdo/bit.h as

- #define BIT(nr)	(UL(1) << (nr))

which is safer than the local BIT macros declared.
Local macros shift a signed integer which brings
unespected results. For example:

(unsigned long)(1 << 31) => 0xffffffff80000000

shift.c:

int main() {
        printf("%lx\n", (unsigned long)(1 << 31));
        printf("%lx\n", (unsigned long)(1U << 31));
        return 0;
}
---

$ ./shift
ffffffff80000000
80000000
---

Don't put "---" in a changelog text, otherwise the signed-off-by will be
cut off.  Can you resend it with that changed to something else like
"---------------" or anything else?

thanks,

greg k-h