函数逻辑报告

Linux Kernel

v5.5.9

Brick Technologies Co., Ltd

Source Code:security\keys\keyring.c Create Date:2022-07-27 19:51:49
Last Modify:2020-03-12 14:18:49 Copyright©Brick
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函数名称：Multiply 64-bits by 32-bits to 96-bits and fold back to 64-bit. Ideally we'd* fold the carry back too, but that requires inline asm.

函数原型：static u64 mult_64x32_and_fold(u64 x, unsigned int y)

返回类型：u64

参数：

类型参数名称
u64x
unsigned inty
155  u64 hi = (u64)(he local APIC register structure, memory mapped. Not terribly well* tested, but we might eventually use this one in the future - the* problem why we cannot use it right now is the P5 APIC, it has an)(x >> 32) * y
156  u64 lo = (u64)(he local APIC register structure, memory mapped. Not terribly well* tested, but we might eventually use this one in the future - the* problem why we cannot use it right now is the P5 APIC, it has an)(x) * y
157  返回:lo + (hi << 32) + (he local APIC register structure, memory mapped. Not terribly well* tested, but we might eventually use this one in the future - the* problem why we cannot use it right now is the P5 APIC, it has an)(hi >> 32)
调用者
名称描述
hash_key_type_and_descHash a key type and description.