Orange Pi5 kernel

// SPDX-License-Identifier: GPL-2.0
/*
 * Feature set bits and string conversion.
 * Inspired by ext4's features compat/incompat/ro_compat related code.
 *
 * Copyright 2020 Coly Li <colyli@suse.de>
 *
 */
#include <linux/bcache.h>
#include "bcache.h"
#include "features.h"
 
struct feature {
<------>int		compat;
<------>unsigned int	mask;
<------>const char	*string;
};
 
static struct feature feature_list[] = {
<------>{BCH_FEATURE_INCOMPAT, BCH_FEATURE_INCOMPAT_LOG_LARGE_BUCKET_SIZE,
<------><------>"large_bucket"},
<------>{0, 0, 0 },
};
 
#define compose_feature_string(type)				\
({									\
<------>struct feature *f;						\
<------>bool first = true;						\
<------><------><------><------><------><------><------><------><------>\
<------>for (f = &feature_list[0]; f->compat != 0; f++) {		\
<------><------>if (f->compat != BCH_FEATURE_ ## type)			\
<------><------><------>continue;					\
<------><------>if (BCH_HAS_ ## type ## _FEATURE(&c->cache->sb, f->mask)) {	\
<------><------><------>if (first) {					\
<------><------><------><------>out += snprintf(out, buf + size - out,	\
<------><------><------><------><------><------>"[");	\
<------><------><------>} else {					\
<------><------><------><------>out += snprintf(out, buf + size - out,	\
<------><------><------><------><------><------>" [");			\
<------><------><------>}						\
<------><------>} else if (!first) {					\
<------><------><------>out += snprintf(out, buf + size - out, " ");	\
<------><------>}							\
<------><------><------><------><------><------><------><------><------>\
<------><------>out += snprintf(out, buf + size - out, "%s", f->string);\
<------><------><------><------><------><------><------><------><------>\
<------><------>if (BCH_HAS_ ## type ## _FEATURE(&c->cache->sb, f->mask))	\
<------><------><------>out += snprintf(out, buf + size - out, "]");	\
<------><------><------><------><------><------><------><------><------>\
<------><------>first = false;						\
<------>}								\
<------>if (!first)							\
<------><------>out += snprintf(out, buf + size - out, "\n");		\
})
 
int bch_print_cache_set_feature_compat(struct cache_set *c, char *buf, int size)
{
<------>char *out = buf;
<------>compose_feature_string(COMPAT);
<------>return out - buf;
}
 
int bch_print_cache_set_feature_ro_compat(struct cache_set *c, char *buf, int size)
{
<------>char *out = buf;
<------>compose_feature_string(RO_COMPAT);
<------>return out - buf;
}
 
int bch_print_cache_set_feature_incompat(struct cache_set *c, char *buf, int size)
{
<------>char *out = buf;
<------>compose_feature_string(INCOMPAT);
<------>return out - buf;
}