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Revert "interconnect: Teach lockdep about icc_bw_lock order"

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This reverts commit 0db211ec0f which is
commit 1361917030 upstream.

It is reported to cause boot crashes in Android systems, so revert it
from the stable trees for now.

Cc: Rob Clark <robdclark@chromium.org>
Cc: Georgi Djakov <djakov@kernel.org>
Cc: Guenter Roeck <linux@roeck-us.net>
Cc: Jon Hunter <jonathanh@nvidia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Greg Kroah-Hartman
2024-03-04 14:12:15 +01:00
parent 19ec82b3ca
commit 559035e04e
1 changed files with 1 additions and 9 deletions
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10
drivers/interconnect/core.c
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@@ -1146,21 +1146,13 @@ void icc_sync_state(struct device *dev)
} }
} }
} }
mutex_unlock(&icc_bw_lock);
mutex_unlock(&icc_lock); mutex_unlock(&icc_lock);
} }
EXPORT_SYMBOL_GPL(icc_sync_state); EXPORT_SYMBOL_GPL(icc_sync_state);
static int __init icc_init(void) static int __init icc_init(void)
{ {
struct device_node *root; struct device_node *root = of_find_node_by_path("/");
/* Teach lockdep about lock ordering wrt. shrinker: */
fs_reclaim_acquire(GFP_KERNEL);
might_lock(&icc_bw_lock);
fs_reclaim_release(GFP_KERNEL);
root = of_find_node_by_path("/");
providers_count = of_count_icc_providers(root); providers_count = of_count_icc_providers(root);
of_node_put(root); of_node_put(root);