[tip: x86/build] x86/setup: Move internal setup_data structures into setup_data.h

[tip-bot2 for Thomas Zimmermann]

The following commit has been merged into the x86/build branch of tip:

Commit-ID:     2afa7994f794016d117b192e36b856df66d71172
Gitweb:        https://git.kernel.org/tip/2afa7994f794016d117b192e36b856df66d71172
Author:        Thomas Zimmermann <tzimmermann@xxxxxxx>
AuthorDate:    Fri, 12 Jan 2024 10:44:37 +01:00
Committer:     Borislav Petkov (AMD) <bp@xxxxxxxxx>
CommitterDate: Tue, 30 Jan 2024 15:17:12 +01:00

x86/setup: Move internal setup_data structures into setup_data.h

Move struct_efi_setup_data in order to unify duplicated definition of
the data structure in a single place. Also silence clang's warnings
about GNU extensions in real-mode code which might occur from the
changed includes.

  [ bp: Massage commit message. ]

Signed-off-by: Thomas Zimmermann <tzimmermann@xxxxxxx>
Signed-off-by: Borislav Petkov (AMD) <bp@xxxxxxxxx>
Reviewed-by: Ard Biesheuvel <ardb@xxxxxxxxxx>
Link: https://lore.kernel.org/r/20240112095000.8952-3-tzimmermann@xxxxxxx
---
 arch/x86/Makefile                 |  3 +++-
 arch/x86/boot/compressed/efi.h    |  9 +--------
 arch/x86/include/asm/efi.h        |  9 +--------
 arch/x86/include/asm/pci.h        | 13 +------------
 arch/x86/include/asm/setup_data.h | 32 ++++++++++++++++++++++++++++++-
 5 files changed, 35 insertions(+), 31 deletions(-)
 create mode 100644 arch/x86/include/asm/setup_data.h

diff --git a/arch/x86/Makefile b/arch/x86/Makefile
index 1a068de..24076db 100644
--- a/arch/x86/Makefile
+++ b/arch/x86/Makefile
@@ -53,6 +53,9 @@ REALMODE_CFLAGS += -fno-stack-protector
 REALMODE_CFLAGS += -Wno-address-of-packed-member
 REALMODE_CFLAGS += $(cc_stack_align4)
 REALMODE_CFLAGS += $(CLANG_FLAGS)
+ifdef CONFIG_CC_IS_CLANG
+REALMODE_CFLAGS += -Wno-gnu
+endif
 export REALMODE_CFLAGS
 
 # BITS is used as extension for files which are available in a 32 bit
diff --git a/arch/x86/boot/compressed/efi.h b/arch/x86/boot/compressed/efi.h
index 866c0af..b223009 100644
--- a/arch/x86/boot/compressed/efi.h
+++ b/arch/x86/boot/compressed/efi.h
@@ -97,15 +97,6 @@ typedef struct {
 	u32 tables;
 } efi_system_table_32_t;
 
-/* kexec external ABI */
-struct efi_setup_data {
-	u64 fw_vendor;
-	u64 __unused;
-	u64 tables;
-	u64 smbios;
-	u64 reserved[8];
-};
-
 struct efi_unaccepted_memory {
 	u32 version;
 	u32 unit_size;
diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h
index c4555b2..a5d7a83 100644
--- a/arch/x86/include/asm/efi.h
+++ b/arch/x86/include/asm/efi.h
@@ -143,15 +143,6 @@ extern void efi_free_boot_services(void);
 void arch_efi_call_virt_setup(void);
 void arch_efi_call_virt_teardown(void);
 
-/* kexec external ABI */
-struct efi_setup_data {
-	u64 fw_vendor;
-	u64 __unused;
-	u64 tables;
-	u64 smbios;
-	u64 reserved[8];
-};
-
 extern u64 efi_setup;
 
 #ifdef CONFIG_EFI
diff --git a/arch/x86/include/asm/pci.h b/arch/x86/include/asm/pci.h
index f6100df..b3ab80a 100644
--- a/arch/x86/include/asm/pci.h
+++ b/arch/x86/include/asm/pci.h
@@ -10,7 +10,6 @@
 #include <linux/numa.h>
 #include <asm/io.h>
 #include <asm/memtype.h>
-#include <asm/setup_data.h>
 
 struct pci_sysdata {
 	int		domain;		/* PCI domain */
@@ -124,16 +123,4 @@ cpumask_of_pcibus(const struct pci_bus *bus)
 }
 #endif
 
-struct pci_setup_rom {
-	struct setup_data data;
-	uint16_t vendor;
-	uint16_t devid;
-	uint64_t pcilen;
-	unsigned long segment;
-	unsigned long bus;
-	unsigned long device;
-	unsigned long function;
-	uint8_t romdata[];
-};
-
 #endif /* _ASM_X86_PCI_H */
diff --git a/arch/x86/include/asm/setup_data.h b/arch/x86/include/asm/setup_data.h
new file mode 100644
index 0000000..77c5111
--- /dev/null
+++ b/arch/x86/include/asm/setup_data.h
@@ -0,0 +1,32 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _ASM_X86_SETUP_DATA_H
+#define _ASM_X86_SETUP_DATA_H
+
+#include <uapi/asm/setup_data.h>
+
+#ifndef __ASSEMBLY__
+
+struct pci_setup_rom {
+	struct setup_data data;
+	uint16_t vendor;
+	uint16_t devid;
+	uint64_t pcilen;
+	unsigned long segment;
+	unsigned long bus;
+	unsigned long device;
+	unsigned long function;
+	uint8_t romdata[];
+};
+
+/* kexec external ABI */
+struct efi_setup_data {
+	u64 fw_vendor;
+	u64 __unused;
+	u64 tables;
+	u64 smbios;
+	u64 reserved[8];
+};
+
+#endif /* __ASSEMBLY__ */
+
+#endif /* _ASM_X86_SETUP_DATA_H */