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HV:treewide:Update return type of function ffs64 and ffz64

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To reduce type conversion in HV:
Update return type of function ffs64 and ffz64 as uint16;
For ffs64, when the input is zero, INVALID_BIT_INDEX is returned;
Update temporary variable type and return value check of caller
when it call ffs64 or ffz64;

Note: In the allocate_mem, there is no return value checking for
calling ffz64, this will be updated latter.

V1-->V2:
        INVALID_BIT_INDEX instead of INVALID_NUMBER
        Coding style fixing;
        INVALID_CPU_ID instead of INVALID_PCPU_ID or INVALID_VCPU_ID;
        "%hu" is used to print vcpu id (uint16_t);
        Add "U/UL" for constant value as needed.
V2-->V3:
        ffs64 return INVALID_BIT_INDEX directly when
        the input value is zero;
        Remove excess "%hu" updates.
V3-->V4:
        Clean up the comments of ffs64;
        Add "U" for constant value as needed.

Signed-off-by: Xiangyang Wu <xiangyang.wu@intel.com>
Acked-by: Eddie Dong <eddie.dong@intel.com>
This commit is contained in:
Xiangyang Wu
2018-07-02 14:05:58 +08:00
committed by lijinxia
parent db01efa047
commit a97593e7db
14 changed files with 68 additions and 57 deletions
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2
hypervisor/common/hypercall.c
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@@ -220,7 +220,7 @@ int64_t hcall_create_vcpu(struct vm *vm, uint64_t vmid, uint64_t param)
}
pcpu_id = allocate_pcpu();
if (INVALID_PCPU_ID == pcpu_id) {
if (pcpu_id == INVALID_CPU_ID) {
pr_err("%s: No physical available\n", __func__);
return -1;
}