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Fix some warnings

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rdmsr.c:616:10: warning: comparison of 0 <= unsigned expression is always true [-Wtautological-compare]
                                if(0 <= val && val <= 7) { // Support 8 P-states
                                   ~ ^  ~~~
rdmsr.c:572:8: warning: variable 'val' is used uninitialized whenever 'if' condition is false [-Wsometimes-uninitialized]
                                if(!multiplier)
                                   ^~~~~~~~~~~
rdmsr.c:574:8: note: uninitialized use occurs here
                                if(val > 0) {
                                   ^~~
rdmsr.c:572:5: note: remove the 'if' if its condition is always true
                                if(!multiplier)
                                ^~~~~~~~~~~~~~~
rdmsr.c:541:14: note: initialize the variable 'val' to silence this warning
        uint64_t val;
                    ^
                     = 0
2 warnings generated.
This commit is contained in:
X0rg 2016-05-18 18:13:35 +02:00
parent 5272d9f060
commit aaa7e155a9
1 changed files with 4 additions and 4 deletions
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8
libcpuid/rdmsr.c
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@ -569,12 +569,12 @@ int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
{
if(cpuid_get_vendor() == VENDOR_INTEL)
{
if(!multiplier)
if(!multiplier) {
cpu_rdmsr_range(handle, PLATFORM_INFO_MSR, PLATFORM_INFO_MSR_high, PLATFORM_INFO_MSR_low, &val);
if(val > 0) {
multiplier = (int) val;
return multiplier * 100;
}
if(multiplier > 0)
return multiplier * 100;
}
err = cpu_rdmsr(handle, 0x198, &r);
if (err) return CPU_INVALID_VALUE;
@ -613,7 +613,7 @@ int cpu_msrinfo(struct msr_driver_t* handle, cpu_msrinfo_request_t which)
MSRC001_00[6B:64][15:9] = CpuVid */
uint64_t CpuVid;
cpu_rdmsr_range(handle, MSR_PSTATE_S, 2, 0, &val);
if(0 <= val && val <= 7) { // Support 8 P-states
if(val <= 7) { // Support 8 P-states
cpu_rdmsr_range(handle, MSR_PSTATE_0 + val, 15, 9, &CpuVid);
return (int) (1.550 - 0.0125 * CpuVid) * 100; // 2.4.1.6.3 - Serial VID (SVI) Encodings
}