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2024-05-10 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb

 kernel/arch/x86/kernel/cpu/mtrr/cleanup.c
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@@ -296,7 +296,7 @@
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 			unsigned long sizek)
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 {
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 	unsigned long hole_basek, hole_sizek;
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-	unsigned long second_basek, second_sizek;
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+	unsigned long second_sizek;
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 	unsigned long range0_basek, range0_sizek;
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 	unsigned long range_basek, range_sizek;
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 	unsigned long chunk_sizek;
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@@ -304,7 +304,6 @@
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 	hole_basek = 0;
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 	hole_sizek = 0;
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-	second_basek = 0;
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 	second_sizek = 0;
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 	chunk_sizek = state->chunk_sizek;
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 	gran_sizek = state->gran_sizek;
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@@ -831,7 +830,8 @@
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 {
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 	u32 l, h;
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-	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD)
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+	if (boot_cpu_data.x86_vendor != X86_VENDOR_AMD &&
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+	    boot_cpu_data.x86_vendor != X86_VENDOR_HYGON)
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 		return 0;
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 	if (boot_cpu_data.x86 < 0xf)
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 		return 0;