Re: [PATCH net v3] NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx

Hello:

This patch was applied to netdev/net.git (master)
by Jakub Kicinski [off-list ref]:

On Wed, 18 May 2022 19:57:33 +0800 you wrote:

There are sleep in atomic context bugs when the request to secure
element of st21nfca is timeout. The root cause is that kzalloc and
alloc_skb with GFP_KERNEL parameter and mutex_lock are called in
st21nfca_se_wt_timeout which is a timer handler. The call tree shows
the execution paths that could lead to bugs:

   (Interrupt context)
st21nfca_se_wt_timeout
  nfc_hci_send_event
    nfc_hci_hcp_message_tx
      kzalloc(..., GFP_KERNEL) //may sleep
      alloc_skb(..., GFP_KERNEL) //may sleep
      mutex_lock() //may sleep

[...]

Here is the summary with links:
  - [net,v3] NFC: hci: fix sleep in atomic context bugs in nfc_hci_hcp_message_tx
    https://git.kernel.org/netdev/net/c/b413b0cb0086

You are awesome, thank you!
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