Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3)  * lib/lshrdi3.c
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4)  */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) #include <linux/libgcc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) long long notrace __lshrdi3(long long u, word_type b)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	DWunion uu, w;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 	word_type bm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) 	if (b == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) 		return u;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) 	uu.ll = u;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) 	bm = 32 - b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) 	if (bm <= 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) 		w.s.high = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) 		w.s.low = (unsigned int) uu.s.high >> -bm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) 	} else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) 		const unsigned int carries = (unsigned int) uu.s.high << bm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) 		w.s.high = (unsigned int) uu.s.high >> b;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) 		w.s.low = ((unsigned int) uu.s.low >> b) | carries;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) 	}
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) 	return w.ll;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) EXPORT_SYMBOL(__lshrdi3);