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authorLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 15:07:37 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2015-06-26 15:07:37 -0700
commit8d7804a2f03dbd34940fcb426450c730adf29dae (patch)
tree749f33776e38f734b81c2a93275b6bf76e96f74e /kernel
parentd87823813fe498fdd47894bd28e460a9dee8d771 (diff)
parent0e6c861f73ec42ab5c89fda9892f2173c7aaf6cf (diff)
downloadlinux-8d7804a2f03dbd34940fcb426450c730adf29dae.tar.bz2
Merge tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core
Pull driver core updates from Greg KH: "Here is the driver core / firmware changes for 4.2-rc1. A number of small changes all over the place in the driver core, and in the firmware subsystem. Nothing really major, full details in the shortlog. Some of it is a bit of churn, given that the platform driver probing changes was found to not work well, so they were reverted. All of these have been in linux-next for a while with no reported issues" * tag 'driver-core-4.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core: (31 commits) Revert "base/platform: Only insert MEM and IO resources" Revert "base/platform: Continue on insert_resource() error" Revert "of/platform: Use platform_device interface" Revert "base/platform: Remove code duplication" firmware: add missing kfree for work on async call fs: sysfs: don't pass count == 0 to bin file readers base:dd - Fix for typo in comment to function driver_deferred_probe_trigger(). base/platform: Remove code duplication of/platform: Use platform_device interface base/platform: Continue on insert_resource() error base/platform: Only insert MEM and IO resources firmware: use const for remaining firmware names firmware: fix possible use after free on name on asynchronous request firmware: check for file truncation on direct firmware loading firmware: fix __getname() missing failure check drivers: of/base: move of_init to driver_init drivers/base: cacheinfo: fix annoying typo when DT nodes are absent sysfs: disambiguate between "error code" and "failure" in comments driver-core: fix build for !CONFIG_MODULES driver-core: make __device_attach() static ...
Diffstat (limited to 'kernel')
-rw-r--r--kernel/module.c18
-rw-r--r--kernel/params.c11
2 files changed, 21 insertions, 8 deletions
diff --git a/kernel/module.c b/kernel/module.c
index b38f96a183b5..f80a97f7da1f 100644
--- a/kernel/module.c
+++ b/kernel/module.c
@@ -3107,7 +3107,7 @@ static noinline int do_init_module(struct module *mod)
*
* http://thread.gmane.org/gmane.linux.kernel/1420814
*/
- if (current->flags & PF_USED_ASYNC)
+ if (!mod->async_probe_requested && (current->flags & PF_USED_ASYNC))
async_synchronize_full();
mutex_lock(&module_mutex);
@@ -3237,10 +3237,19 @@ out:
return err;
}
-static int unknown_module_param_cb(char *param, char *val, const char *modname)
+static int unknown_module_param_cb(char *param, char *val, const char *modname,
+ void *arg)
{
+ struct module *mod = arg;
+ int ret;
+
+ if (strcmp(param, "async_probe") == 0) {
+ mod->async_probe_requested = true;
+ return 0;
+ }
+
/* Check for magic 'dyndbg' arg */
- int ret = ddebug_dyndbg_module_param_cb(param, val, modname);
+ ret = ddebug_dyndbg_module_param_cb(param, val, modname);
if (ret != 0)
pr_warn("%s: unknown parameter '%s' ignored\n", modname, param);
return 0;
@@ -3342,7 +3351,8 @@ static int load_module(struct load_info *info, const char __user *uargs,
/* Module is ready to execute: parsing args may do that. */
after_dashes = parse_args(mod->name, mod->args, mod->kp, mod->num_kp,
- -32768, 32767, unknown_module_param_cb);
+ -32768, 32767, NULL,
+ unknown_module_param_cb);
if (IS_ERR(after_dashes)) {
err = PTR_ERR(after_dashes);
goto bug_cleanup;
diff --git a/kernel/params.c b/kernel/params.c
index a22d6a759b1a..30288c1e15dd 100644
--- a/kernel/params.c
+++ b/kernel/params.c
@@ -100,8 +100,9 @@ static int parse_one(char *param,
unsigned num_params,
s16 min_level,
s16 max_level,
+ void *arg,
int (*handle_unknown)(char *param, char *val,
- const char *doing))
+ const char *doing, void *arg))
{
unsigned int i;
int err;
@@ -128,7 +129,7 @@ static int parse_one(char *param,
if (handle_unknown) {
pr_debug("doing %s: %s='%s'\n", doing, param, val);
- return handle_unknown(param, val, doing);
+ return handle_unknown(param, val, doing, arg);
}
pr_debug("Unknown argument '%s'\n", param);
@@ -194,7 +195,9 @@ char *parse_args(const char *doing,
unsigned num,
s16 min_level,
s16 max_level,
- int (*unknown)(char *param, char *val, const char *doing))
+ void *arg,
+ int (*unknown)(char *param, char *val,
+ const char *doing, void *arg))
{
char *param, *val;
@@ -214,7 +217,7 @@ char *parse_args(const char *doing,
return args;
irq_was_disabled = irqs_disabled();
ret = parse_one(param, val, doing, params, num,
- min_level, max_level, unknown);
+ min_level, max_level, arg, unknown);
if (irq_was_disabled && !irqs_disabled())
pr_warn("%s: option '%s' enabled irq's!\n",
doing, param);