diff options
| -rw-r--r-- | external/gard/gard.c | 36 |
1 files changed, 33 insertions, 3 deletions
diff --git a/external/gard/gard.c b/external/gard/gard.c index 0b7a68b..53f31d9 100644 --- a/external/gard/gard.c +++ b/external/gard/gard.c @@ -41,6 +41,8 @@ #include "gard.h" +#define CLEARED_RECORD_ID 0xFFFFFFFF + #define FDT_ACTIVE_FLASH_PATH "/proc/device-tree/chosen/ibm,system-flash" #define SYSFS_MTD_PATH "/sys/class/mtd/" #define FLASH_GARD_PART "GUARD" @@ -226,6 +228,11 @@ static const char *path_type_to_str(enum path_type t) return "Unknown"; } +static bool is_valid_id(uint32_t record_id) +{ + return record_id != CLEARED_RECORD_ID; +} + static int do_iterate(struct gard_ctx *ctx, int (*func)(struct gard_ctx *ctx, int pos, struct gard_record *gard, void *priv), @@ -272,13 +279,36 @@ static int get_largest_pos(struct gard_ctx *ctx) return largest; } +static int count_valid_records_i(struct gard_ctx *ctx, int pos, struct gard_record *gard, void *priv) +{ + if (!gard || !priv) + return -1; + + if (is_valid_id(be32toh(gard->record_id))) + (*(int *)priv)++; + + return 0; +} + +static int count_valid_records(struct gard_ctx *ctx) +{ + int rc, count = 0; + + rc = do_iterate(ctx, &count_valid_records_i, &count); + if (rc) + return 0; + + return count; +} + static int do_list_i(struct gard_ctx *ctx, int pos, struct gard_record *gard, void *priv) { if (!gard) return -1; - printf("| %08x | %08x | %-15s |\n", be32toh(gard->record_id), - be32toh(gard->errlog_eid), path_type_to_str(gard->target_id.type_size >> PATH_TYPE_SHIFT)); + if (is_valid_id(be32toh(gard->record_id))) + printf("| %08x | %08x | %-15s |\n", be32toh(gard->record_id), be32toh(gard->errlog_eid), + path_type_to_str(gard->target_id.type_size >> PATH_TYPE_SHIFT)); return 0; } @@ -288,7 +318,7 @@ static int do_list(struct gard_ctx *ctx, int argc, char **argv) int rc; /* No entries */ - if (get_largest_pos(ctx) == -1) { + if (count_valid_records(ctx) == 0) { printf("No GARD entries to display\n"); rc = 0; } else { |