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SubjectRe: [PATCH] iwlwifi: mvm: add rtnl_lock() in iwl_mvm_start_get_nvm()
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From: Luca Coelho <luca@coelho.fi>
Date: Thu, 2 Sep 2021 13:11:01 +0300

> From: Luca Coelho <luciano.coelho@intel.com>
>
> Due to a rebase damage, we lost the rtnl_lock() when the patch was
> sent out. This causes an RTNL imbalance and failed assertions, due to
> missing RTNL protection, for instance:
>
> RTNL: assertion failed at net/wireless/reg.c (4025)
> WARNING: CPU: 60 PID: 1720 at net/wireless/reg.c:4025 regulatory_set_wiphy_regd_sync+0x7f/0x90 [cfg80211]
> Call Trace:
> iwl_mvm_init_mcc+0x170/0x190 [iwlmvm]
> iwl_op_mode_mvm_start+0x824/0xa60 [iwlmvm]
> iwl_opmode_register+0xd0/0x130 [iwlwifi]
> init_module+0x23/0x1000 [iwlmvm]
>
> Fix this by adding the missing rtnl_lock() back to the code.
>
> Fixes: eb09ae93dabf ("iwlwifi: mvm: load regdomain at INIT stage")
> Signed-off-by: Luca Coelho <luciano.coelho@intel.com>

Linus, please just take this directly, thanks.

Acked-by: David S. Miller <davem@davemloft.net>

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