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x86/cpu/centaur: Replace two-condition switch-case with an if statement

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Use a normal if statements instead of a two-condition switch-case.

 [ bp: Massage commit message. ]

Signed-off-by: Tony W Wang-oc <TonyWWang-oc@zhaoxin.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/1599562666-31351-2-git-send-email-TonyWWang-oc@zhaoxin.com
This commit is contained in:
Tony W Wang-oc
2020-09-08 18:57:45 +08:00
committed by Borislav Petkov
parent 61aa9a0a5e
commit 8687bdc041
1 changed files with 9 additions and 16 deletions
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25
arch/x86/kernel/cpu/centaur.c
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@@ -90,18 +90,14 @@ enum {
static void early_init_centaur(struct cpuinfo_x86 *c)
{
switch (c->x86) {
#ifdef CONFIG_X86_32
case 5:
/* Emulate MTRRs using Centaur's MCR. */
/* Emulate MTRRs using Centaur's MCR. */
if (c->x86 == 5)
set_cpu_cap(c, X86_FEATURE_CENTAUR_MCR);
break;
#endif
case 6:
if (c->x86_model >= 0xf)
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
break;
}
if (c->x86 == 6 && c->x86_model >= 0xf)
set_cpu_cap(c, X86_FEATURE_CONSTANT_TSC);
#ifdef CONFIG_X86_64
set_cpu_cap(c, X86_FEATURE_SYSENTER32);
#endif
@@ -145,9 +141,8 @@ static void init_centaur(struct cpuinfo_x86 *c)
set_cpu_cap(c, X86_FEATURE_ARCH_PERFMON);
}
switch (c->x86) {
#ifdef CONFIG_X86_32
case 5:
if (c->x86 == 5) {
switch (c->x86_model) {
case 4:
name = "C6";
@@ -207,12 +202,10 @@ static void init_centaur(struct cpuinfo_x86 *c)
c->x86_cache_size = (cc>>24)+(dd>>24);
}
sprintf(c->x86_model_id, "WinChip %s", name);
break;
#endif
case 6:
init_c3(c);
break;
}
#endif
if (c->x86 == 6)
init_c3(c);
#ifdef CONFIG_X86_64
set_cpu_cap(c, X86_FEATURE_LFENCE_RDTSC);
#endif