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| author | Christophe JAILLET <christophe.jaillet@wanadoo.fr> | 2020-08-09 11:29:06 +0200 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2020-08-18 15:52:11 +0300 |
| commit | d2ab7f00f4321370a8ee14e5630d4349fdacc42e (patch) | |
| tree | 6716643515b69f19297b673d14be0287c1ba814d /tools/perf/scripts/python/flamegraph.py | |
| parent | adm8211: switch from 'pci_' to 'dma_' API (diff) | |
| download | linux-d2ab7f00f4321370a8ee14e5630d4349fdacc42e.tar.gz linux-d2ab7f00f4321370a8ee14e5630d4349fdacc42e.zip | |
mwifiex: Do not use GFP_KERNEL in atomic context
A possible call chain is as follow:
mwifiex_sdio_interrupt (sdio.c)
--> mwifiex_main_process (main.c)
--> mwifiex_process_cmdresp (cmdevt.c)
--> mwifiex_process_sta_cmdresp (sta_cmdresp.c)
--> mwifiex_ret_802_11_scan (scan.c)
--> mwifiex_parse_single_response_buf (scan.c)
'mwifiex_sdio_interrupt()' is an interrupt function.
Also note that 'mwifiex_ret_802_11_scan()' already uses GFP_ATOMIC.
So use GFP_ATOMIC instead of GFP_KERNEL when memory is allocated in
'mwifiex_parse_single_response_buf()'.
Fixes: 7c6fa2a843c5 ("mwifiex: use cfg80211 dynamic scan table and cfg80211_get_bss API")
or
Fixes: 601216e12c65e ("mwifiex: process RX packets in SDIO IRQ thread directly")
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20200809092906.744621-1-christophe.jaillet@wanadoo.fr
Diffstat (limited to 'tools/perf/scripts/python/flamegraph.py')
0 files changed, 0 insertions, 0 deletions