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-rw-r--r--drivers/acpi/apei/erst.c38
-rw-r--r--drivers/firmware/efi/efi-pstore.c104
2 files changed, 59 insertions, 83 deletions
diff --git a/drivers/acpi/apei/erst.c b/drivers/acpi/apei/erst.c
index ec4f507b524f..bbefb7522f80 100644
--- a/drivers/acpi/apei/erst.c
+++ b/drivers/acpi/apei/erst.c
@@ -925,10 +925,7 @@ static int erst_check_table(struct acpi_table_erst *erst_tab)
static int erst_open_pstore(struct pstore_info *psi);
static int erst_close_pstore(struct pstore_info *psi);
-static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, int *count,
- struct timespec *time, char **buf,
- bool *compressed, ssize_t *ecc_notice_size,
- struct pstore_info *psi);
+static ssize_t erst_reader(struct pstore_record *record);
static int erst_writer(enum pstore_type_id type, enum kmsg_dump_reason reason,
u64 *id, unsigned int part, int count, bool compressed,
size_t size, struct pstore_info *psi);
@@ -986,10 +983,7 @@ static int erst_close_pstore(struct pstore_info *psi)
return 0;
}
-static ssize_t erst_reader(u64 *id, enum pstore_type_id *type, int *count,
- struct timespec *time, char **buf,
- bool *compressed, ssize_t *ecc_notice_size,
- struct pstore_info *psi)
+static ssize_t erst_reader(struct pstore_record *record)
{
int rc;
ssize_t len = 0;
@@ -1027,33 +1021,33 @@ skip:
if (uuid_le_cmp(rcd->hdr.creator_id, CPER_CREATOR_PSTORE) != 0)
goto skip;
- *buf = kmalloc(len, GFP_KERNEL);
- if (*buf == NULL) {
+ record->buf = kmalloc(len, GFP_KERNEL);
+ if (record->buf == NULL) {
rc = -ENOMEM;
goto out;
}
- memcpy(*buf, rcd->data, len - sizeof(*rcd));
- *id = record_id;
- *compressed = false;
- *ecc_notice_size = 0;
+ memcpy(record->buf, rcd->data, len - sizeof(*rcd));
+ record->id = record_id;
+ record->compressed = false;
+ record->ecc_notice_size = 0;
if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_DMESG_Z) == 0) {
- *type = PSTORE_TYPE_DMESG;
- *compressed = true;
+ record->type = PSTORE_TYPE_DMESG;
+ record->compressed = true;
} else if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_DMESG) == 0)
- *type = PSTORE_TYPE_DMESG;
+ record->type = PSTORE_TYPE_DMESG;
else if (uuid_le_cmp(rcd->sec_hdr.section_type,
CPER_SECTION_TYPE_MCE) == 0)
- *type = PSTORE_TYPE_MCE;
+ record->type = PSTORE_TYPE_MCE;
else
- *type = PSTORE_TYPE_UNKNOWN;
+ record->type = PSTORE_TYPE_UNKNOWN;
if (rcd->hdr.validation_bits & CPER_VALID_TIMESTAMP)
- time->tv_sec = rcd->hdr.timestamp;
+ record->time.tv_sec = rcd->hdr.timestamp;
else
- time->tv_sec = 0;
- time->tv_nsec = 0;
+ record->time.tv_sec = 0;
+ record->time.tv_nsec = 0;
out:
kfree(rcd);
diff --git a/drivers/firmware/efi/efi-pstore.c b/drivers/firmware/efi/efi-pstore.c
index f402ba2eed46..bda24129e85b 100644
--- a/drivers/firmware/efi/efi-pstore.c
+++ b/drivers/firmware/efi/efi-pstore.c
@@ -28,26 +28,16 @@ static int efi_pstore_close(struct pstore_info *psi)
return 0;
}
-struct pstore_read_data {
- u64 *id;
- enum pstore_type_id *type;
- int *count;
- struct timespec *timespec;
- bool *compressed;
- ssize_t *ecc_notice_size;
- char **buf;
-};
-
static inline u64 generic_id(unsigned long timestamp,
unsigned int part, int count)
{
return ((u64) timestamp * 100 + part) * 1000 + count;
}
-static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
+static int efi_pstore_read_func(struct efivar_entry *entry,
+ struct pstore_record *record)
{
efi_guid_t vendor = LINUX_EFI_CRASH_GUID;
- struct pstore_read_data *cb_data = data;
char name[DUMP_NAME_LEN], data_type;
int i;
int cnt;
@@ -61,37 +51,37 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
name[i] = entry->var.VariableName[i];
if (sscanf(name, "dump-type%u-%u-%d-%lu-%c",
- cb_data->type, &part, &cnt, &time, &data_type) == 5) {
- *cb_data->id = generic_id(time, part, cnt);
- *cb_data->count = cnt;
- cb_data->timespec->tv_sec = time;
- cb_data->timespec->tv_nsec = 0;
+ &record->type, &part, &cnt, &time, &data_type) == 5) {
+ record->id = generic_id(time, part, cnt);
+ record->count = cnt;
+ record->time.tv_sec = time;
+ record->time.tv_nsec = 0;
if (data_type == 'C')
- *cb_data->compressed = true;
+ record->compressed = true;
else
- *cb_data->compressed = false;
- *cb_data->ecc_notice_size = 0;
+ record->compressed = false;
+ record->ecc_notice_size = 0;
} else if (sscanf(name, "dump-type%u-%u-%d-%lu",
- cb_data->type, &part, &cnt, &time) == 4) {
- *cb_data->id = generic_id(time, part, cnt);
- *cb_data->count = cnt;
- cb_data->timespec->tv_sec = time;
- cb_data->timespec->tv_nsec = 0;
- *cb_data->compressed = false;
- *cb_data->ecc_notice_size = 0;
+ &record->type, &part, &cnt, &time) == 4) {
+ record->id = generic_id(time, part, cnt);
+ record->count = cnt;
+ record->time.tv_sec = time;
+ record->time.tv_nsec = 0;
+ record->compressed = false;
+ record->ecc_notice_size = 0;
} else if (sscanf(name, "dump-type%u-%u-%lu",
- cb_data->type, &part, &time) == 3) {
+ &record->type, &part, &time) == 3) {
/*
* Check if an old format,
* which doesn't support holding
* multiple logs, remains.
*/
- *cb_data->id = generic_id(time, part, 0);
- *cb_data->count = 0;
- cb_data->timespec->tv_sec = time;
- cb_data->timespec->tv_nsec = 0;
- *cb_data->compressed = false;
- *cb_data->ecc_notice_size = 0;
+ record->id = generic_id(time, part, 0);
+ record->count = 0;
+ record->time.tv_sec = time;
+ record->time.tv_nsec = 0;
+ record->compressed = false;
+ record->ecc_notice_size = 0;
} else
return 0;
@@ -99,7 +89,7 @@ static int efi_pstore_read_func(struct efivar_entry *entry, void *data)
__efivar_entry_get(entry, &entry->var.Attributes,
&entry->var.DataSize, entry->var.Data);
size = entry->var.DataSize;
- memcpy(*cb_data->buf, entry->var.Data,
+ memcpy(record->buf, entry->var.Data,
(size_t)min_t(unsigned long, EFIVARS_DATA_SIZE_MAX, size));
return size;
@@ -164,7 +154,7 @@ static int efi_pstore_scan_sysfs_exit(struct efivar_entry *pos,
/**
* efi_pstore_sysfs_entry_iter
*
- * @data: function-specific data to pass to callback
+ * @record: pstore record to pass to callback
* @pos: entry to begin iterating from
*
* You MUST call efivar_enter_iter_begin() before this function, and
@@ -175,7 +165,8 @@ static int efi_pstore_scan_sysfs_exit(struct efivar_entry *pos,
* the next entry of the last one passed to efi_pstore_read_func().
* To begin iterating from the beginning of the list @pos must be %NULL.
*/
-static int efi_pstore_sysfs_entry_iter(void *data, struct efivar_entry **pos)
+static int efi_pstore_sysfs_entry_iter(struct pstore_record *record,
+ struct efivar_entry **pos)
{
struct efivar_entry *entry, *n;
struct list_head *head = &efivar_sysfs_list;
@@ -186,7 +177,7 @@ static int efi_pstore_sysfs_entry_iter(void *data, struct efivar_entry **pos)
list_for_each_entry_safe(entry, n, head, list) {
efi_pstore_scan_sysfs_enter(entry, n, head);
- size = efi_pstore_read_func(entry, data);
+ size = efi_pstore_read_func(entry, record);
ret = efi_pstore_scan_sysfs_exit(entry, n, head,
size < 0);
if (ret)
@@ -201,7 +192,7 @@ static int efi_pstore_sysfs_entry_iter(void *data, struct efivar_entry **pos)
list_for_each_entry_safe_from((*pos), n, head, list) {
efi_pstore_scan_sysfs_enter((*pos), n, head);
- size = efi_pstore_read_func((*pos), data);
+ size = efi_pstore_read_func((*pos), record);
ret = efi_pstore_scan_sysfs_exit((*pos), n, head, size < 0);
if (ret)
return ret;
@@ -225,36 +216,27 @@ static int efi_pstore_sysfs_entry_iter(void *data, struct efivar_entry **pos)
* size < 0: Failed to get data of entry logging via efi_pstore_write(),
* and pstore will stop reading entry.
*/
-static ssize_t efi_pstore_read(u64 *id, enum pstore_type_id *type,
- int *count, struct timespec *timespec,
- char **buf, bool *compressed,
- ssize_t *ecc_notice_size,
- struct pstore_info *psi)
+static ssize_t efi_pstore_read(struct pstore_record *record)
{
- struct pstore_read_data data;
+ struct efivar_entry *entry = (struct efivar_entry *)record->psi->data;
ssize_t size;
- data.id = id;
- data.type = type;
- data.count = count;
- data.timespec = timespec;
- data.compressed = compressed;
- data.ecc_notice_size = ecc_notice_size;
- data.buf = buf;
-
- *data.buf = kzalloc(EFIVARS_DATA_SIZE_MAX, GFP_KERNEL);
- if (!*data.buf)
+ record->buf = kzalloc(EFIVARS_DATA_SIZE_MAX, GFP_KERNEL);
+ if (!record->buf)
return -ENOMEM;
if (efivar_entry_iter_begin()) {
- kfree(*data.buf);
- return -EINTR;
+ size = -EINTR;
+ goto out;
}
- size = efi_pstore_sysfs_entry_iter(&data,
- (struct efivar_entry **)&psi->data);
+ size = efi_pstore_sysfs_entry_iter(record, &entry);
efivar_entry_iter_end();
- if (size <= 0)
- kfree(*data.buf);
+
+out:
+ if (size <= 0) {
+ kfree(record->buf);
+ record->buf = NULL;
+ }
return size;
}