s390/alternatives: Merge both alternative header files

The two alternative header files must stay in sync. This is easier to
achieve within one header file. Therefore merge both of them and have
only one file, like most other architectures.
Reviewed-by: Alexander Gordeev <agordeev@linux.ibm.com>
Tested-by: Sven Schnelle <svens@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>

arch/s390/include/asm/alternative-asm.h

-/* SPDX-License-Identifier: GPL-2.0 */
-#ifndef _ASM_S390_ALTERNATIVE_ASM_H
-#define _ASM_S390_ALTERNATIVE_ASM_H
-
-#ifdef __ASSEMBLY__
-
-/*
- * Issue one struct alt_instr descriptor entry (need to put it into
- * the section .altinstructions, see below). This entry contains
- * enough information for the alternatives patching code to patch an
- * instruction. See apply_alternatives().
- */
-.macro alt_entry orig_start, orig_end, alt_start, alt_end, feature
-	.long	\orig_start - .
-	.long	\alt_start - .
-	.word	\feature
-	.byte	\orig_end - \orig_start
-	.org	. - ( \orig_end - \orig_start ) & 1
-	.org	. - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
-	.org	. - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
-.endm
-
-/*
- * Define an alternative between two instructions. If @feature is
- * present, early code in apply_alternatives() replaces @oldinstr with
- * @newinstr.
- */
-.macro ALTERNATIVE oldinstr, newinstr, feature
-	.pushsection .altinstr_replacement,"ax"
-770:	\newinstr
-771:	.popsection
-772:	\oldinstr
-773:	.pushsection .altinstructions,"a"
-	alt_entry 772b, 773b, 770b, 771b, \feature
-	.popsection
-.endm
-
-/*
- * Define an alternative between two instructions. If @feature is
- * present, early code in apply_alternatives() replaces @oldinstr with
- * @newinstr.
- */
-.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2
-	.pushsection .altinstr_replacement,"ax"
-770:	\newinstr1
-771:	\newinstr2
-772:	.popsection
-773:	\oldinstr
-774:	.pushsection .altinstructions,"a"
-	alt_entry 773b, 774b, 770b, 771b,\feature1
-	alt_entry 773b, 774b, 771b, 772b,\feature2
-	.popsection
-.endm
-
-#endif	/*  __ASSEMBLY__  */
-
-#endif /* _ASM_S390_ALTERNATIVE_ASM_H */

arch/s390/include/asm/alternative.h

@@ -116,6 +116,56 @@ void apply_alternatives(struct alt_instr *start, struct alt_instr *end);
 /* Use this macro if clobbers are needed without inputs. */
 #define ASM_NO_INPUT_CLOBBER(clobber...) : clobber
 
+#else  /* __ASSEMBLY__ */
+
+/*
+ * Issue one struct alt_instr descriptor entry (need to put it into
+ * the section .altinstructions, see below). This entry contains
+ * enough information for the alternatives patching code to patch an
+ * instruction. See apply_alternatives().
+ */
+.macro alt_entry orig_start, orig_end, alt_start, alt_end, feature
+	.long	\orig_start - .
+	.long	\alt_start - .
+	.word	\feature
+	.byte	\orig_end - \orig_start
+	.org	. - ( \orig_end - \orig_start ) & 1
+	.org	. - ( \orig_end - \orig_start ) + ( \alt_end - \alt_start )
+	.org	. - ( \alt_end - \alt_start ) + ( \orig_end - \orig_start )
+.endm
+
+/*
+ * Define an alternative between two instructions. If @feature is
+ * present, early code in apply_alternatives() replaces @oldinstr with
+ * @newinstr.
+ */
+.macro ALTERNATIVE oldinstr, newinstr, feature
+	.pushsection .altinstr_replacement,"ax"
+770:	\newinstr
+771:	.popsection
+772:	\oldinstr
+773:	.pushsection .altinstructions,"a"
+	alt_entry 772b, 773b, 770b, 771b, \feature
+	.popsection
+.endm
+
+/*
+ * Define an alternative between two instructions. If @feature is
+ * present, early code in apply_alternatives() replaces @oldinstr with
+ * @newinstr.
+ */
+.macro ALTERNATIVE_2 oldinstr, newinstr1, feature1, newinstr2, feature2
+	.pushsection .altinstr_replacement,"ax"
+770:	\newinstr1
+771:	\newinstr2
+772:	.popsection
+773:	\oldinstr
+774:	.pushsection .altinstructions,"a"
+	alt_entry 773b, 774b, 770b, 771b,\feature1
+	alt_entry 773b, 774b, 771b, 772b,\feature2
+	.popsection
+.endm
+
 #endif /* __ASSEMBLY__ */
 
 #endif /* _ASM_S390_ALTERNATIVE_H */

arch/s390/kernel/entry.S

@@ -12,7 +12,7 @@
 #include <linux/init.h>
 #include <linux/linkage.h>
 #include <asm/asm-extable.h>
-#include <asm/alternative-asm.h>
+#include <asm/alternative.h>
 #include <asm/processor.h>
 #include <asm/cache.h>
 #include <asm/dwarf.h>