kexec: rename ARCH_HAS_KEXEC_PURGATORY

The Kconfig refactor to consolidate KEXEC and CRASH options utilized
option names of the form ARCH_SUPPORTS_<option>. Thus rename the
ARCH_HAS_KEXEC_PURGATORY to ARCH_SUPPORTS_KEXEC_PURGATORY to follow
the same.

Link: https://lkml.kernel.org/r/20230712161545.87870-15-eric.devolder@oracle.comSigned-off-by: Eric DeVolder <eric.devolder@oracle.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

arch/powerpc/Kconfig

@@ -595,7 +595,7 @@ config ARCH_SUPPORTS_KEXEC
 config ARCH_SUPPORTS_KEXEC_FILE
 	def_bool PPC64 && CRYPTO=y && CRYPTO_SHA256=y
 
-config ARCH_HAS_KEXEC_PURGATORY
+config ARCH_SUPPORTS_KEXEC_PURGATORY
 	def_bool KEXEC_FILE
 
 config ARCH_SELECTS_KEXEC_FILE

arch/riscv/Kbuild

@@ -5,7 +5,7 @@ obj-$(CONFIG_BUILTIN_DTB) += boot/dts/
 obj-y += errata/
 obj-$(CONFIG_KVM) += kvm/
 
-obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += purgatory/
+obj-$(CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY) += purgatory/
 
 # for cleaning
 subdir- += boot

arch/riscv/Kconfig

@@ -667,7 +667,7 @@ config ARCH_SELECTS_KEXEC_FILE
 	select HAVE_IMA_KEXEC if IMA
 	select KEXEC_ELF
 
-config ARCH_HAS_KEXEC_PURGATORY
+config ARCH_SUPPORTS_KEXEC_PURGATORY
 	def_bool KEXEC_FILE
 	depends on CRYPTO=y
 	depends on CRYPTO_SHA256=y

arch/riscv/kernel/elf_kexec.c

@@ -260,7 +260,7 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
 		cmdline = modified_cmdline;
 	}
 
-#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
+#ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY
 	/* Add purgatory to the image */
 	kbuf.top_down = true;
 	kbuf.mem = KEXEC_BUF_MEM_UNKNOWN;
@@ -274,7 +274,7 @@ static void *elf_kexec_load(struct kimage *image, char *kernel_buf,
 					     sizeof(kernel_start), 0);
 	if (ret)
 		pr_err("Error update purgatory ret=%d\n", ret);
-#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */
+#endif /* CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY */
 
 	/* Add the initrd to the image */
 	if (initrd != NULL) {

arch/s390/Kbuild

@@ -7,7 +7,7 @@ obj-$(CONFIG_S390_HYPFS_FS)	+= hypfs/
 obj-$(CONFIG_APPLDATA_BASE)	+= appldata/
 obj-y				+= net/
 obj-$(CONFIG_PCI)		+= pci/
-obj-$(CONFIG_ARCH_HAS_KEXEC_PURGATORY) += purgatory/
+obj-$(CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY) += purgatory/
 
 # for cleaning
 subdir- += boot tools

arch/s390/Kconfig

@@ -257,7 +257,7 @@ config ARCH_SUPPORTS_KEXEC_FILE
 config ARCH_SUPPORTS_KEXEC_SIG
 	def_bool MODULE_SIG_FORMAT
 
-config ARCH_HAS_KEXEC_PURGATORY
+config ARCH_SUPPORTS_KEXEC_PURGATORY
 	def_bool KEXEC_FILE
 
 config ARCH_SUPPORTS_CRASH_DUMP

arch/x86/Kconfig

@@ -2051,7 +2051,7 @@ config ARCH_SELECTS_KEXEC_FILE
 	depends on KEXEC_FILE
 	select HAVE_IMA_KEXEC if IMA
 
-config ARCH_HAS_KEXEC_PURGATORY
+config ARCH_SUPPORTS_KEXEC_PURGATORY
 	def_bool KEXEC_FILE
 
 config ARCH_SUPPORTS_KEXEC_SIG

kernel/kexec_file.c

@@ -685,7 +685,7 @@ static int kexec_calculate_store_digests(struct kimage *image)
 	struct kexec_sha_region *sha_regions;
 	struct purgatory_info *pi = &image->purgatory_info;
 
-	if (!IS_ENABLED(CONFIG_ARCH_HAS_KEXEC_PURGATORY))
+	if (!IS_ENABLED(CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY))
 		return 0;
 
 	zero_buf = __va(page_to_pfn(ZERO_PAGE(0)) << PAGE_SHIFT);
@@ -790,7 +790,7 @@ static int kexec_calculate_store_digests(struct kimage *image)
 	return ret;
 }
 
-#ifdef CONFIG_ARCH_HAS_KEXEC_PURGATORY
+#ifdef CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY
 /*
  * kexec_purgatory_setup_kbuf - prepare buffer to load purgatory.
  * @pi:		Purgatory to be loaded.
@@ -1150,7 +1150,7 @@ int kexec_purgatory_get_set_symbol(struct kimage *image, const char *name,
 
 	return 0;
 }
-#endif /* CONFIG_ARCH_HAS_KEXEC_PURGATORY */
+#endif /* CONFIG_ARCH_SUPPORTS_KEXEC_PURGATORY */
 
 int crash_exclude_mem_range(struct crash_mem *mem,
 			    unsigned long long mstart, unsigned long long mend)