1 files changed, 14 insertions, 9 deletions

diff --git a/drivers/firmware/efivars.c b/drivers/firmware/efivars.c
index 3803621c0d45..7ad3aae6e085 100644
--- a/drivers/firmware/efivars.c
+++ b/drivers/firmware/efivars.c
@@ -658,13 +658,14 @@ static int efi_pstore_close(struct pstore_info *psi)
 }
 
 static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
-                               struct timespec *timespec,
+                               int *count, struct timespec *timespec,
                                char **buf, struct pstore_info *psi)
 {
         efi_guid_t vendor = LINUX_EFI_CRASH_GUID;
         struct efivars *efivars = psi->data;
         char name[DUMP_NAME_LEN];
         int i;
+        int cnt;
         unsigned int part, size;
         unsigned long time;
 
@@ -674,8 +675,10 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
                         for (i = 0; i < DUMP_NAME_LEN; i++) {
                                 name[i] = efivars->walk_entry->var.VariableName[i];
                         }
-                        if (sscanf(name, "dump-type%u-%u-%lu", type, &part, &time) == 3) {
+                        if (sscanf(name, "dump-type%u-%u-%d-%lu",
+                                   type, &part, &cnt, &time) == 4) {
                                 *id = part;
+                                *count = cnt;
                                 timespec->tv_sec = time;
                                 timespec->tv_nsec = 0;
                                 get_var_data_locked(efivars, &efivars->walk_entry->var);
@@ -698,7 +701,8 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
 
 static int efi_pstore_write(enum pstore_type_id type,
                 enum kmsg_dump_reason reason, u64 *id,
-                unsigned int part, size_t size, struct pstore_info *psi)
+                unsigned int part, int count, size_t size,
+                struct pstore_info *psi)
 {
         char name[DUMP_NAME_LEN];
         efi_char16_t efi_name[DUMP_NAME_LEN];
@@ -725,7 +729,7 @@ static int efi_pstore_write(enum pstore_type_id type,
                 return -ENOSPC;
         }
 
-        sprintf(name, "dump-type%u-%u-%lu", type, part,
+        sprintf(name, "dump-type%u-%u-%d-%lu", type, part, count,
                 get_seconds());
 
         for (i = 0; i < DUMP_NAME_LEN; i++)
@@ -746,7 +750,7 @@ static int efi_pstore_write(enum pstore_type_id type,
         return ret;
 };
 
-static int efi_pstore_erase(enum pstore_type_id type, u64 id,
+static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
                             struct timespec time, struct pstore_info *psi)
 {
         char name[DUMP_NAME_LEN];
@@ -756,7 +760,7 @@ static int efi_pstore_erase(enum pstore_type_id type, u64 id,
         struct efivar_entry *entry, *found = NULL;
         int i;
 
-        sprintf(name, "dump-type%u-%u-%lu", type, (unsigned int)id,
+        sprintf(name, "dump-type%u-%u-%d-%lu", type, (unsigned int)id, count,
                 time.tv_sec);
 
         spin_lock(&efivars->lock);
@@ -807,7 +811,7 @@ static int efi_pstore_close(struct pstore_info *psi)
         return 0;
 }
 
-static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
+static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type, int *count,
                                struct timespec *timespec,
                                char **buf, struct pstore_info *psi)
 {
@@ -816,12 +820,13 @@ static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
 
 static int efi_pstore_write(enum pstore_type_id type,
                 enum kmsg_dump_reason reason, u64 *id,
-                unsigned int part, size_t size, struct pstore_info *psi)
+                unsigned int part, int count, size_t size,
+                struct pstore_info *psi)
 {
         return 0;
 }
 
-static int efi_pstore_erase(enum pstore_type_id type, u64 id,
+static int efi_pstore_erase(enum pstore_type_id type, u64 id, int count,
                             struct timespec time, struct pstore_info *psi)
 {
         return 0;