ipq806x: drop linux 4.9 support

[openwrt/staging/blogic.git] / target / linux / ipq806x / patches-4.9 / 0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch

diff --git a/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch b/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch
deleted file mode 100644 (file)
index 7b41157..0000000
--- a/target/linux/ipq806x/patches-4.9/0050-OPP-Allow-notifiers-to-call-dev_pm_opp_get_-voltage-.patch
+++ /dev/null
@@ -1,107 +0,0 @@
-From 4a17bbfcf72c94b37079e39a7c1e1e8653f7fe92 Mon Sep 17 00:00:00 2001
-From: Stephen Boyd <sboyd@codeaurora.org>
-Date: Fri, 18 Sep 2015 17:52:07 -0700
-Subject: [PATCH 50/69] OPP: Allow notifiers to call dev_pm_opp_get_{voltage,
- freq} RCU-free
-
-We pass the dev_pm_opp structure to OPP notifiers but the users
-of the notifier need to surround calls to dev_pm_opp_get_*() with
-RCU read locks to avoid lockdep warnings. The notifier is already
-called with the dev_opp's srcu lock held, so it should be safe to
-assume the devm_pm_opp structure is already protected inside the
-notifier. Update the lockdep check for this.
-
-Cc: Krzysztof Kozlowski <k.kozlowski@samsung.com>
-Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
-Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
-Signed-off-by: Georgi Djakov <georgi.djakov@linaro.org>
----
- drivers/base/power/opp/core.c | 19 ++++++++++---------
- 1 file changed, 10 insertions(+), 9 deletions(-)
-
---- a/drivers/base/power/opp/core.c
-+++ b/drivers/base/power/opp/core.c
-@@ -32,9 +32,10 @@ LIST_HEAD(opp_tables);
- /* Lock to allow exclusive modification to the device and opp lists */
- DEFINE_MUTEX(opp_table_lock);
- 
--#define opp_rcu_lockdep_assert()                                      \
-+#define opp_rcu_lockdep_assert(s)                                     \
- do {                                                                  \
-       RCU_LOCKDEP_WARN(!rcu_read_lock_held() &&                       \
-+                       !(s && srcu_read_lock_held(s)) &&              \
-                        !lockdep_is_held(&opp_table_lock),             \
-                        "Missing rcu_read_lock() or "                  \
-                        "opp_table_lock protection");                  \
-@@ -72,7 +73,7 @@ struct opp_table *_find_opp_table(struct
- {
-       struct opp_table *opp_table;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       if (IS_ERR_OR_NULL(dev)) {
-               pr_err("%s: Invalid parameters\n", __func__);
-@@ -106,7 +107,7 @@ unsigned long dev_pm_opp_get_voltage(str
-       struct dev_pm_opp *tmp_opp;
-       unsigned long v = 0;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       tmp_opp = rcu_dereference(opp);
-       if (IS_ERR_OR_NULL(tmp_opp))
-@@ -138,7 +139,7 @@ unsigned long dev_pm_opp_get_freq(struct
-       struct dev_pm_opp *tmp_opp;
-       unsigned long f = 0;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       tmp_opp = rcu_dereference(opp);
-       if (IS_ERR_OR_NULL(tmp_opp) || !tmp_opp->available)
-@@ -172,7 +173,7 @@ bool dev_pm_opp_is_turbo(struct dev_pm_o
- {
-       struct dev_pm_opp *tmp_opp;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       tmp_opp = rcu_dereference(opp);
-       if (IS_ERR_OR_NULL(tmp_opp) || !tmp_opp->available) {
-@@ -300,7 +301,7 @@ struct dev_pm_opp *dev_pm_opp_get_suspen
- {
-       struct opp_table *opp_table;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       opp_table = _find_opp_table(dev);
-       if (IS_ERR(opp_table) || !opp_table->suspend_opp ||
-@@ -380,7 +381,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_
-       struct opp_table *opp_table;
-       struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       opp_table = _find_opp_table(dev);
-       if (IS_ERR(opp_table)) {
-@@ -444,7 +445,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_
- {
-       struct opp_table *opp_table;
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       if (!dev || !freq) {
-               dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);
-@@ -486,7 +487,7 @@ struct dev_pm_opp *dev_pm_opp_find_freq_
-       struct opp_table *opp_table;
-       struct dev_pm_opp *temp_opp, *opp = ERR_PTR(-ERANGE);
- 
--      opp_rcu_lockdep_assert();
-+      opp_rcu_lockdep_assert(NULL);
- 
-       if (!dev || !freq) {
-               dev_err(dev, "%s: Invalid argument freq=%p\n", __func__, freq);