#include <linux/suspend.h>
#include <linux/syscore_ops.h>
#include <linux/reboot.h>
+#include <linux/security.h>
#include <generated/utsrelease.h>
static inline long firmware_loading_timeout(void)
{
- return loading_timeout > 0 ? loading_timeout * HZ : MAX_SCHEDULE_TIMEOUT;
+ return loading_timeout > 0 ? loading_timeout * HZ : MAX_JIFFY_OFFSET;
}
+/* firmware behavior options */
+#define FW_OPT_UEVENT (1U << 0)
+#define FW_OPT_NOWAIT (1U << 1)
+#ifdef CONFIG_FW_LOADER_USER_HELPER
+#define FW_OPT_USERHELPER (1U << 2)
+#else
+#define FW_OPT_USERHELPER 0
+#endif
+#ifdef CONFIG_FW_LOADER_USER_HELPER_FALLBACK
+#define FW_OPT_FALLBACK FW_OPT_USERHELPER
+#else
+#define FW_OPT_FALLBACK 0
+#endif
+#define FW_OPT_NO_WARN (1U << 3)
+
struct firmware_cache {
/* firmware_buf instance will be added into the below list */
spinlock_t lock;
size_t size;
#ifdef CONFIG_FW_LOADER_USER_HELPER
bool is_paged_buf;
+ bool need_uevent;
struct page **pages;
int nr_pages;
int page_array_size;
struct list_head pending_list;
#endif
- char fw_id[];
+ const char *fw_id;
};
struct fw_cache_entry {
struct list_head list;
- char name[];
+ const char *name;
};
struct fw_name_devm {
unsigned long magic;
- char name[];
+ const char *name;
};
#define to_fwbuf(d) container_of(d, struct firmware_buf, ref)
{
struct firmware_buf *buf;
- buf = kzalloc(sizeof(*buf) + strlen(fw_name) + 1 , GFP_ATOMIC);
-
+ buf = kzalloc(sizeof(*buf), GFP_ATOMIC);
if (!buf)
- return buf;
+ return NULL;
+
+ buf->fw_id = kstrdup_const(fw_name, GFP_ATOMIC);
+ if (!buf->fw_id) {
+ kfree(buf);
+ return NULL;
+ }
kref_init(&buf->ref);
- strcpy(buf->fw_id, fw_name);
buf->fwc = fwc;
init_completion(&buf->completion);
#ifdef CONFIG_FW_LOADER_USER_HELPER
return tmp ? 0 : -ENOMEM;
}
-static struct firmware_buf *fw_lookup_buf(const char *fw_name)
-{
- struct firmware_buf *tmp;
- struct firmware_cache *fwc = &fw_cache;
-
- spin_lock(&fwc->lock);
- tmp = __fw_lookup_buf(fw_name);
- spin_unlock(&fwc->lock);
-
- return tmp;
-}
-
static void __fw_free_buf(struct kref *ref)
+ __releases(&fwc->lock)
{
struct firmware_buf *buf = to_fwbuf(ref);
struct firmware_cache *fwc = buf->fwc;
} else
#endif
vfree(buf->data);
+ kfree_const(buf->fw_id);
kfree(buf);
}
module_param_string(path, fw_path_para, sizeof(fw_path_para), 0644);
MODULE_PARM_DESC(path, "customized firmware image search path with a higher priority than default path");
-/* Don't inline this: 'struct kstat' is biggish */
-static noinline_for_stack long fw_file_size(struct file *file)
+static int fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf)
{
- struct kstat st;
- if (vfs_getattr(&file->f_path, &st))
- return -1;
- if (!S_ISREG(st.mode))
- return -1;
- if (st.size != (long)st.size)
- return -1;
- return st.size;
-}
-
-static bool fw_read_file_contents(struct file *file, struct firmware_buf *fw_buf)
-{
- long size;
+ int size;
char *buf;
+ int rc;
- size = fw_file_size(file);
+ if (!S_ISREG(file_inode(file)->i_mode))
+ return -EINVAL;
+ size = i_size_read(file_inode(file));
if (size <= 0)
- return false;
+ return -EINVAL;
buf = vmalloc(size);
if (!buf)
- return false;
- if (kernel_read(file, 0, buf, size) != size) {
- vfree(buf);
- return false;
+ return -ENOMEM;
+ rc = kernel_read(file, 0, buf, size);
+ if (rc != size) {
+ if (rc > 0)
+ rc = -EIO;
+ goto fail;
}
+ rc = security_kernel_fw_from_file(file, buf, size);
+ if (rc)
+ goto fail;
fw_buf->data = buf;
fw_buf->size = size;
- return true;
+ return 0;
+fail:
+ vfree(buf);
+ return rc;
}
-static bool fw_get_filesystem_firmware(struct device *device,
+static int fw_get_filesystem_firmware(struct device *device,
struct firmware_buf *buf)
{
- int i;
- bool success = false;
- char *path = __getname();
+ int i, len;
+ int rc = -ENOENT;
+ char *path;
+
+ path = __getname();
+ if (!path)
+ return -ENOMEM;
for (i = 0; i < ARRAY_SIZE(fw_path); i++) {
struct file *file;
if (!fw_path[i][0])
continue;
- snprintf(path, PATH_MAX, "%s/%s", fw_path[i], buf->fw_id);
+ len = snprintf(path, PATH_MAX, "%s/%s",
+ fw_path[i], buf->fw_id);
+ if (len >= PATH_MAX) {
+ rc = -ENAMETOOLONG;
+ break;
+ }
file = filp_open(path, O_RDONLY, 0);
if (IS_ERR(file))
continue;
- success = fw_read_file_contents(file, buf);
+ rc = fw_read_file_contents(file, buf);
fput(file);
- if (success)
+ if (rc)
+ dev_warn(device, "firmware, attempted to load %s, but failed with error %d\n",
+ path, rc);
+ else
break;
}
__putname(path);
- if (success) {
+ if (!rc) {
dev_dbg(device, "firmware: direct-loading firmware %s\n",
buf->fw_id);
mutex_lock(&fw_lock);
mutex_unlock(&fw_lock);
}
- return success;
+ return rc;
}
/* firmware holds the ownership of pages */
if (fwn->magic == (unsigned long)&fw_cache)
pr_debug("%s: fw_name-%s devm-%p released\n",
__func__, fwn->name, res);
+ kfree_const(fwn->name);
}
static int fw_devm_match(struct device *dev, void *res,
if (fwn)
return 1;
- fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm) +
- strlen(name) + 1, GFP_KERNEL);
+ fwn = devres_alloc(fw_name_devm_release, sizeof(struct fw_name_devm),
+ GFP_KERNEL);
if (!fwn)
return -ENOMEM;
+ fwn->name = kstrdup_const(name, GFP_KERNEL);
+ if (!fwn->name) {
+ devres_free(fwn);
+ return -ENOMEM;
+ }
fwn->magic = (unsigned long)&fw_cache;
- strcpy(fwn->name, name);
devres_add(dev, fwn);
return 0;
*/
#ifdef CONFIG_FW_LOADER_USER_HELPER
struct firmware_priv {
- struct delayed_work timeout_work;
bool nowait;
struct device dev;
struct firmware_buf *buf;
.notifier_call = fw_shutdown_notify,
};
-static ssize_t firmware_timeout_show(struct class *class,
- struct class_attribute *attr,
- char *buf)
+static ssize_t timeout_show(struct class *class, struct class_attribute *attr,
+ char *buf)
{
return sprintf(buf, "%d\n", loading_timeout);
}
*
* Note: zero means 'wait forever'.
**/
-static ssize_t firmware_timeout_store(struct class *class,
- struct class_attribute *attr,
- const char *buf, size_t count)
+static ssize_t timeout_store(struct class *class, struct class_attribute *attr,
+ const char *buf, size_t count)
{
loading_timeout = simple_strtol(buf, NULL, 10);
if (loading_timeout < 0)
}
static struct class_attribute firmware_class_attrs[] = {
- __ATTR(timeout, S_IWUSR | S_IRUGO,
- firmware_timeout_show, firmware_timeout_store),
+ __ATTR_RW(timeout),
__ATTR_NULL
};
struct firmware_priv *fw_priv = to_firmware_priv(dev);
kfree(fw_priv);
-
- module_put(THIS_MODULE);
}
static int do_firmware_uevent(struct firmware_priv *fw_priv, struct kobj_uevent_env *env)
if (!buf->is_paged_buf)
return 0;
- if (buf->data)
- vunmap(buf->data);
+ vunmap(buf->data);
buf->data = vmap(buf->pages, buf->nr_pages, 0, PAGE_KERNEL_RO);
if (!buf->data)
return -ENOMEM;
{
struct firmware_priv *fw_priv = to_firmware_priv(dev);
struct firmware_buf *fw_buf;
+ ssize_t written = count;
int loading = simple_strtol(buf, NULL, 10);
int i;
break;
case 0:
if (test_bit(FW_STATUS_LOADING, &fw_buf->status)) {
+ int rc;
+
set_bit(FW_STATUS_DONE, &fw_buf->status);
clear_bit(FW_STATUS_LOADING, &fw_buf->status);
* see the mapped 'buf->data' once the loading
* is completed.
* */
- fw_map_pages_buf(fw_buf);
+ rc = fw_map_pages_buf(fw_buf);
+ if (rc)
+ dev_err(dev, "%s: map pages failed\n",
+ __func__);
+ else
+ rc = security_kernel_fw_from_file(NULL,
+ fw_buf->data, fw_buf->size);
+
+ /*
+ * Same logic as fw_load_abort, only the DONE bit
+ * is ignored and we set ABORT only on failure.
+ */
list_del_init(&fw_buf->pending_list);
+ if (rc) {
+ set_bit(FW_STATUS_ABORT, &fw_buf->status);
+ written = rc;
+ }
complete_all(&fw_buf->completion);
break;
}
}
out:
mutex_unlock(&fw_lock);
- return count;
+ return written;
}
static DEVICE_ATTR(loading, 0644, firmware_loading_show, firmware_loading_store);
static int fw_realloc_buffer(struct firmware_priv *fw_priv, int min_size)
{
struct firmware_buf *buf = fw_priv->buf;
- int pages_needed = ALIGN(min_size, PAGE_SIZE) >> PAGE_SHIFT;
+ int pages_needed = PAGE_ALIGN(min_size) >> PAGE_SHIFT;
/* If the array of pages is too small, grow it... */
if (buf->page_array_size < pages_needed) {
.write = firmware_data_write,
};
-static void firmware_class_timeout_work(struct work_struct *work)
-{
- struct firmware_priv *fw_priv = container_of(work,
- struct firmware_priv, timeout_work.work);
+static struct attribute *fw_dev_attrs[] = {
+ &dev_attr_loading.attr,
+ NULL
+};
- mutex_lock(&fw_lock);
- fw_load_abort(fw_priv);
- mutex_unlock(&fw_lock);
-}
+static struct bin_attribute *fw_dev_bin_attrs[] = {
+ &firmware_attr_data,
+ NULL
+};
+
+static const struct attribute_group fw_dev_attr_group = {
+ .attrs = fw_dev_attrs,
+ .bin_attrs = fw_dev_bin_attrs,
+};
+
+static const struct attribute_group *fw_dev_attr_groups[] = {
+ &fw_dev_attr_group,
+ NULL
+};
static struct firmware_priv *
fw_create_instance(struct firmware *firmware, const char *fw_name,
- struct device *device, bool uevent, bool nowait)
+ struct device *device, unsigned int opt_flags)
{
struct firmware_priv *fw_priv;
struct device *f_dev;
fw_priv = kzalloc(sizeof(*fw_priv), GFP_KERNEL);
if (!fw_priv) {
- dev_err(device, "%s: kmalloc failed\n", __func__);
fw_priv = ERR_PTR(-ENOMEM);
goto exit;
}
- fw_priv->nowait = nowait;
+ fw_priv->nowait = !!(opt_flags & FW_OPT_NOWAIT);
fw_priv->fw = firmware;
- INIT_DELAYED_WORK(&fw_priv->timeout_work,
- firmware_class_timeout_work);
-
f_dev = &fw_priv->dev;
device_initialize(f_dev);
dev_set_name(f_dev, "%s", fw_name);
f_dev->parent = device;
f_dev->class = &firmware_class;
+ f_dev->groups = fw_dev_attr_groups;
exit:
return fw_priv;
}
/* load a firmware via user helper */
-static int _request_firmware_load(struct firmware_priv *fw_priv, bool uevent,
- long timeout)
+static int _request_firmware_load(struct firmware_priv *fw_priv,
+ unsigned int opt_flags, long timeout)
{
int retval = 0;
struct device *f_dev = &fw_priv->dev;
dev_set_uevent_suppress(f_dev, true);
- /* Need to pin this module until class device is destroyed */
- __module_get(THIS_MODULE);
-
retval = device_add(f_dev);
if (retval) {
dev_err(f_dev, "%s: device_register failed\n", __func__);
goto err_put_dev;
}
- retval = device_create_bin_file(f_dev, &firmware_attr_data);
- if (retval) {
- dev_err(f_dev, "%s: sysfs_create_bin_file failed\n", __func__);
- goto err_del_dev;
- }
-
mutex_lock(&fw_lock);
list_add(&buf->pending_list, &pending_fw_head);
mutex_unlock(&fw_lock);
- retval = device_create_file(f_dev, &dev_attr_loading);
- if (retval) {
- mutex_lock(&fw_lock);
- list_del_init(&buf->pending_list);
- mutex_unlock(&fw_lock);
- dev_err(f_dev, "%s: device_create_file failed\n", __func__);
- goto err_del_bin_attr;
- }
-
- if (uevent) {
+ if (opt_flags & FW_OPT_UEVENT) {
+ buf->need_uevent = true;
dev_set_uevent_suppress(f_dev, false);
dev_dbg(f_dev, "firmware: requesting %s\n", buf->fw_id);
- if (timeout != MAX_SCHEDULE_TIMEOUT)
- schedule_delayed_work(&fw_priv->timeout_work, timeout);
-
kobject_uevent(&fw_priv->dev.kobj, KOBJ_ADD);
+ } else {
+ timeout = MAX_JIFFY_OFFSET;
}
- wait_for_completion(&buf->completion);
+ retval = wait_for_completion_interruptible_timeout(&buf->completion,
+ timeout);
+ if (retval == -ERESTARTSYS || !retval) {
+ mutex_lock(&fw_lock);
+ fw_load_abort(fw_priv);
+ mutex_unlock(&fw_lock);
+ } else if (retval > 0) {
+ retval = 0;
+ }
- cancel_delayed_work_sync(&fw_priv->timeout_work);
+ if (is_fw_load_aborted(buf))
+ retval = -EAGAIN;
+ else if (!buf->data)
+ retval = -ENOMEM;
- device_remove_file(f_dev, &dev_attr_loading);
-err_del_bin_attr:
- device_remove_bin_file(f_dev, &firmware_attr_data);
-err_del_dev:
device_del(f_dev);
err_put_dev:
put_device(f_dev);
static int fw_load_from_user_helper(struct firmware *firmware,
const char *name, struct device *device,
- bool uevent, bool nowait, long timeout)
+ unsigned int opt_flags, long timeout)
{
struct firmware_priv *fw_priv;
- fw_priv = fw_create_instance(firmware, name, device, uevent, nowait);
+ fw_priv = fw_create_instance(firmware, name, device, opt_flags);
if (IS_ERR(fw_priv))
return PTR_ERR(fw_priv);
fw_priv->buf = firmware->priv;
- return _request_firmware_load(fw_priv, uevent, timeout);
+ return _request_firmware_load(fw_priv, opt_flags, timeout);
+}
+
+#ifdef CONFIG_PM_SLEEP
+/* kill pending requests without uevent to avoid blocking suspend */
+static void kill_requests_without_uevent(void)
+{
+ struct firmware_buf *buf;
+ struct firmware_buf *next;
+
+ mutex_lock(&fw_lock);
+ list_for_each_entry_safe(buf, next, &pending_fw_head, pending_list) {
+ if (!buf->need_uevent)
+ __fw_load_abort(buf);
+ }
+ mutex_unlock(&fw_lock);
}
+#endif
+
#else /* CONFIG_FW_LOADER_USER_HELPER */
static inline int
fw_load_from_user_helper(struct firmware *firmware, const char *name,
- struct device *device, bool uevent, bool nowait,
+ struct device *device, unsigned int opt_flags,
long timeout)
{
return -ENOENT;
/* No abort during direct loading */
#define is_fw_load_aborted(buf) false
+#ifdef CONFIG_PM_SLEEP
+static inline void kill_requests_without_uevent(void) { }
+#endif
+
#endif /* CONFIG_FW_LOADER_USER_HELPER */
break;
}
mutex_unlock(&fw_lock);
- wait_for_completion(&buf->completion);
+ ret = wait_for_completion_interruptible(&buf->completion);
mutex_lock(&fw_lock);
}
mutex_unlock(&fw_lock);
return 1; /* need to load */
}
-static int assign_firmware_buf(struct firmware *fw, struct device *device)
+static int assign_firmware_buf(struct firmware *fw, struct device *device,
+ unsigned int opt_flags)
{
struct firmware_buf *buf = fw->priv;
* device may has been deleted already, but the problem
* should be fixed in devres or driver core.
*/
- if (device)
+ /* don't cache firmware handled without uevent */
+ if (device && (opt_flags & FW_OPT_UEVENT))
fw_add_devm_name(device, buf->fw_id);
/*
/* called from request_firmware() and request_firmware_work_func() */
static int
_request_firmware(const struct firmware **firmware_p, const char *name,
- struct device *device, bool uevent, bool nowait)
+ struct device *device, unsigned int opt_flags)
{
struct firmware *fw;
long timeout;
ret = 0;
timeout = firmware_loading_timeout();
- if (nowait) {
+ if (opt_flags & FW_OPT_NOWAIT) {
timeout = usermodehelper_read_lock_wait(timeout);
if (!timeout) {
dev_dbg(device, "firmware: %s loading timed out\n",
}
}
- if (!fw_get_filesystem_firmware(device, fw->priv))
- ret = fw_load_from_user_helper(fw, name, device,
- uevent, nowait, timeout);
+ ret = fw_get_filesystem_firmware(device, fw->priv);
+ if (ret) {
+ if (!(opt_flags & FW_OPT_NO_WARN))
+ dev_warn(device,
+ "Direct firmware load for %s failed with error %d\n",
+ name, ret);
+ if (opt_flags & FW_OPT_USERHELPER) {
+ dev_warn(device, "Falling back to user helper\n");
+ ret = fw_load_from_user_helper(fw, name, device,
+ opt_flags, timeout);
+ }
+ }
+
if (!ret)
- ret = assign_firmware_buf(fw, device);
+ ret = assign_firmware_buf(fw, device, opt_flags);
usermodehelper_read_unlock();
**/
int
request_firmware(const struct firmware **firmware_p, const char *name,
- struct device *device)
+ struct device *device)
{
- return _request_firmware(firmware_p, name, device, true, false);
+ int ret;
+
+ /* Need to pin this module until return */
+ __module_get(THIS_MODULE);
+ ret = _request_firmware(firmware_p, name, device,
+ FW_OPT_UEVENT | FW_OPT_FALLBACK);
+ module_put(THIS_MODULE);
+ return ret;
}
+EXPORT_SYMBOL(request_firmware);
+
+/**
+ * request_firmware_direct: - load firmware directly without usermode helper
+ * @firmware_p: pointer to firmware image
+ * @name: name of firmware file
+ * @device: device for which firmware is being loaded
+ *
+ * This function works pretty much like request_firmware(), but this doesn't
+ * fall back to usermode helper even if the firmware couldn't be loaded
+ * directly from fs. Hence it's useful for loading optional firmwares, which
+ * aren't always present, without extra long timeouts of udev.
+ **/
+int request_firmware_direct(const struct firmware **firmware_p,
+ const char *name, struct device *device)
+{
+ int ret;
+
+ __module_get(THIS_MODULE);
+ ret = _request_firmware(firmware_p, name, device,
+ FW_OPT_UEVENT | FW_OPT_NO_WARN);
+ module_put(THIS_MODULE);
+ return ret;
+}
+EXPORT_SYMBOL_GPL(request_firmware_direct);
/**
* release_firmware: - release the resource associated with a firmware image
kfree(fw);
}
}
+EXPORT_SYMBOL(release_firmware);
/* Async support */
struct firmware_work {
struct device *device;
void *context;
void (*cont)(const struct firmware *fw, void *context);
- bool uevent;
+ unsigned int opt_flags;
};
static void request_firmware_work_func(struct work_struct *work)
fw_work = container_of(work, struct firmware_work, work);
_request_firmware(&fw, fw_work->name, fw_work->device,
- fw_work->uevent, true);
+ fw_work->opt_flags);
fw_work->cont(fw, fw_work->context);
put_device(fw_work->device); /* taken in request_firmware_nowait() */
module_put(fw_work->module);
+ kfree_const(fw_work->name);
kfree(fw_work);
}
{
struct firmware_work *fw_work;
- fw_work = kzalloc(sizeof (struct firmware_work), gfp);
+ fw_work = kzalloc(sizeof(struct firmware_work), gfp);
if (!fw_work)
return -ENOMEM;
fw_work->module = module;
- fw_work->name = name;
+ fw_work->name = kstrdup_const(name, gfp);
+ if (!fw_work->name) {
+ kfree(fw_work);
+ return -ENOMEM;
+ }
fw_work->device = device;
fw_work->context = context;
fw_work->cont = cont;
- fw_work->uevent = uevent;
+ fw_work->opt_flags = FW_OPT_NOWAIT | FW_OPT_FALLBACK |
+ (uevent ? FW_OPT_UEVENT : FW_OPT_USERHELPER);
if (!try_module_get(module)) {
+ kfree_const(fw_work->name);
kfree(fw_work);
return -EFAULT;
}
schedule_work(&fw_work->work);
return 0;
}
+EXPORT_SYMBOL(request_firmware_nowait);
+
+#ifdef CONFIG_PM_SLEEP
+static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain);
/**
* cache_firmware - cache one firmware image in kernel memory space
* Return !0 otherwise
*
*/
-int cache_firmware(const char *fw_name)
+static int cache_firmware(const char *fw_name)
{
int ret;
const struct firmware *fw;
return ret;
}
+static struct firmware_buf *fw_lookup_buf(const char *fw_name)
+{
+ struct firmware_buf *tmp;
+ struct firmware_cache *fwc = &fw_cache;
+
+ spin_lock(&fwc->lock);
+ tmp = __fw_lookup_buf(fw_name);
+ spin_unlock(&fwc->lock);
+
+ return tmp;
+}
+
/**
* uncache_firmware - remove one cached firmware image
* @fw_name: the firmware image name
* Return !0 otherwise
*
*/
-int uncache_firmware(const char *fw_name)
+static int uncache_firmware(const char *fw_name)
{
struct firmware_buf *buf;
struct firmware fw;
return -EINVAL;
}
-#ifdef CONFIG_PM_SLEEP
-static ASYNC_DOMAIN_EXCLUSIVE(fw_cache_domain);
-
static struct fw_cache_entry *alloc_fw_cache_entry(const char *name)
{
struct fw_cache_entry *fce;
- fce = kzalloc(sizeof(*fce) + strlen(name) + 1, GFP_ATOMIC);
+ fce = kzalloc(sizeof(*fce), GFP_ATOMIC);
if (!fce)
goto exit;
- strcpy(fce->name, name);
+ fce->name = kstrdup_const(name, GFP_ATOMIC);
+ if (!fce->name) {
+ kfree(fce);
+ fce = NULL;
+ goto exit;
+ }
exit:
return fce;
}
static void free_fw_cache_entry(struct fw_cache_entry *fce)
{
+ kfree_const(fce->name);
kfree(fce);
}
*/
static void device_uncache_fw_images_delay(unsigned long delay)
{
- schedule_delayed_work(&fw_cache.work,
- msecs_to_jiffies(delay));
+ queue_delayed_work(system_power_efficient_wq, &fw_cache.work,
+ msecs_to_jiffies(delay));
}
static int fw_pm_notify(struct notifier_block *notify_block,
switch (mode) {
case PM_HIBERNATION_PREPARE:
case PM_SUSPEND_PREPARE:
+ case PM_RESTORE_PREPARE:
+ kill_requests_without_uevent();
device_cache_fw_images();
break;
fs_initcall(firmware_class_init);
module_exit(firmware_class_exit);
-
-EXPORT_SYMBOL(release_firmware);
-EXPORT_SYMBOL(request_firmware);
-EXPORT_SYMBOL(request_firmware_nowait);
-EXPORT_SYMBOL_GPL(cache_firmware);
-EXPORT_SYMBOL_GPL(uncache_firmware);
projects / firefly-linux-kernel-4.4.55.git / blobdiff