[linux-6.6.y] x86/cpu: Remove pointless evaluation of x86_coreid_bits

[leoliu-oc]

mainline inclusion from mainline-v6.6-rc1 commit 594957d723a0674ca15bfefb755b3403624b8239 category: other

---

[Only apply patch in zhaoxin.c ]

cpuinfo_x86::x86_coreid_bits is only used by the AMD numa topology code. No point in evaluating it on non AMD systems.

No functional change.

Tested-by: Juergen Gross jgross@suse.com Tested-by: Sohil Mehta sohil.mehta@intel.com Tested-by: Michael Kelley mikelley@microsoft.com Tested-by: Peter Zijlstra (Intel) peterz@infradead.org Tested-by: Zhang Rui rui.zhang@intel.com Reviewed-by: Arjan van de Ven arjan@linux.intel.com Acked-by: Peter Zijlstra (Intel) peterz@infradead.org Link: https://lore.kernel.org/r/20230814085112.687588373@linutronix.de

[deepin-ci-robot]

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[deepin-ci-robot]

Hi @leoliu-oc. Thanks for your PR.

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[opsiff]

/ok-to-test

[opsiff]

/lgtm

[deepin-ci-robot]

deepin pr auto review

关键摘要:

• 移除了对CPUID指令的支持，可能会导致在支持CPUID的CPU上无法获取正确的信息
• 删除了与HTT（超线程技术）相关的代码，可能会影响多核处理器的性能

是否建议立即修改:

• 是