table of contents
| UPPER_32_BITS(9) | Driver Basics | UPPER_32_BITS(9) |
NAME¶
upper_32_bits - return bits 32-63 of a number
SYNOPSIS¶
upper_32_bits(n);
ARGUMENTS¶
n
the number we´re accessing
DESCRIPTION¶
A basic shift-right of a 64- or 32-bit quantity. Use this to suppress the “right shift count >= width of type” warning when that quantity is 32-bits.
COPYRIGHT¶
| April 2023 | Kernel Hackers Manual 2.6. |