RISC-V: hwprobe: Remove __init on probe_vendor_features()

probe_vendor_features() is now called from smp_callin(), which is not
__init code and runs during cpu hotplug events. Remove the
__init_or_module decoration from it and the functions it calls to avoid
walking into outer space.

Fixes: 62a31d6 ("RISC-V: hwprobe: Support probing of misaligned access performance")
Signed-off-by: Evan Green <evan@rivosinc.com>
Reviewed-by: Conor Dooley <conor.dooley@microchip.com>
Link: https://lore.kernel.org/r/20230420194934.1871356-1-evan@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>

Author: evangreen

arch/riscv/errata/thead/errata.c

@@ -118,9 +118,9 @@ void __init_or_module thead_errata_patch_func(struct alt_entry *begin, struct al
 		local_flush_icache_all();
 }
 
-void __init_or_module thead_feature_probe_func(unsigned int cpu,
-					       unsigned long archid,
-					       unsigned long impid)
+void thead_feature_probe_func(unsigned int cpu,
+			      unsigned long archid,
+			      unsigned long impid)
 {
 	if ((archid == 0) && (impid == 0))
 		per_cpu(misaligned_access_speed, cpu) = RISCV_HWPROBE_MISALIGNED_FAST;

arch/riscv/include/asm/alternative.h

@@ -30,7 +30,7 @@
 #define ALT_OLD_PTR(a)			__ALT_PTR(a, old_offset)
 #define ALT_ALT_PTR(a)			__ALT_PTR(a, alt_offset)
 
-void __init probe_vendor_features(unsigned int cpu);
+void probe_vendor_features(unsigned int cpu);
 void __init apply_boot_alternatives(void);
 void __init apply_early_boot_alternatives(void);
 void apply_module_alternatives(void *start, size_t length);

arch/riscv/kernel/alternative.c

@@ -31,7 +31,7 @@ struct cpu_manufacturer_info_t {
 				   unsigned long impid);
 };
 
-static void __init_or_module riscv_fill_cpu_mfr_info(struct cpu_manufacturer_info_t *cpu_mfr_info)
+static void riscv_fill_cpu_mfr_info(struct cpu_manufacturer_info_t *cpu_mfr_info)
 {
 #ifdef CONFIG_RISCV_M_MODE
 	cpu_mfr_info->vendor_id = csr_read(CSR_MVENDORID);
@@ -144,7 +144,7 @@ void riscv_alternative_fix_offsets(void *alt_ptr, unsigned int len,
 }
 
 /* Called on each CPU as it starts */
-void __init_or_module probe_vendor_features(unsigned int cpu)
+void probe_vendor_features(unsigned int cpu)
 {
 	struct cpu_manufacturer_info_t cpu_mfr_info;