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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Don Zickus <dzickus@redhat.com>
Date: Thu, 14 May 2020 10:30:51 -0400
Subject: [PATCH] x86: Fix compile issues with rh_check_supported()

Upstream status: RHEL only

The function rh_check_supported is a RHEL function to limit the
platforms RHEL does not want to support.

To avoid imposing this requirement on Fedora, the function was
wrapped with CONFIG_RHEL_DIFFERENCES so Fedora can disable this.

However, this has a few compile warnings that need to be cleaned up
when disabled.

Move CONFIG_RHEL_DIFFERENCES to include the functions themselves
instead of the call.  As the unused functions created warnings.

V2: modified stub definition

Signed-off-by: Don Zickus <dzickus@redhat.com>
---
 arch/x86/kernel/setup.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c
index b57e6dd6d7ef..66441cb9c1af 100644
--- a/arch/x86/kernel/setup.c
+++ b/arch/x86/kernel/setup.c
@@ -757,6 +757,7 @@ static void __init trim_low_memory_range(void)
 	memblock_reserve(0, ALIGN(reserve_low, PAGE_SIZE));
 }

+#ifdef CONFIG_RHEL_DIFFERENCES
 static bool valid_amd_processor(__u8 family, const char *model_id)
 {
 	bool valid;
@@ -881,6 +882,9 @@ static void rh_check_supported(void)
 	if (acpi_disabled && !guest)
 		pr_crit("ACPI has been disabled or is not available on this hardware.  This may result in a single cpu boot, incorrect PCI IRQ routing, or boot failure.\n");
 }
+#else
+#define rh_check_supported()
+#endif

 /*
  * Dump out kernel offset information on panic.
@@ -1371,9 +1375,7 @@ void __init setup_arch(char **cmdline_p)
 		efi_apply_memmap_quirks();
 #endif

-#ifdef CONFIG_RHEL_DIFFERENCES
 	rh_check_supported();
-#endif

 	unwind_init();
 }
-- 
2.26.2