[patch V2 27/36] net: brcmfmac: Convey allocation mode as argument

[Arend Van Spriel]

On 9/29/2020 10:25 PM, Thomas Gleixner wrote:
> From: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
> 
> The usage of in_interrupt() in drivers is phased out and Linus clearly
> requested that code which changes behaviour depending on context should
> either be seperated or the context be conveyed in an argument passed by the
> caller, which usually knows the context.
> 
> brcmf_fweh_process_event() uses in_interrupt() to select the allocation
> mode GFP_KERNEL/GFP_ATOMIC. Aside of the above reasons this check is
> incomplete as it cannot detect contexts which just have preemption or
> interrupts disabled.
> 
> All callchains leading to brcmf_fweh_process_event() can clearly identify
> the calling context. Convey a 'gfp' argument through the callchains and let
> the callers hand in the appropriate GFP mode.
> 
> This has also the advantage that any change of execution context or
> preemption/interrupt state in these callchains will be detected by the
> memory allocator for all GFP_KERNEL allocations.

Reviewed-by: Arend van Spriel <arend.vanspriel at broadcom.com>
> Signed-off-by: Sebastian Andrzej Siewior <bigeasy at linutronix.de>
> Signed-off-by: Thomas Gleixner <tglx at linutronix.de>
> ---
> V2: Adopt to the 'inirq' changes
> ---
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.c   |   10 ++++++----
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.c   |    8 ++------
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/fweh.h   |    7 ++++---
>   drivers/net/wireless/broadcom/brcm80211/brcmfmac/msgbuf.c |    2 +-
>   4 files changed, 13 insertions(+), 14 deletions(-)
-------------- next part --------------
A non-text attachment was scrubbed...
Name: smime.p7s
Type: application/pkcs7-signature
Size: 4176 bytes
Desc: S/MIME Cryptographic Signature
URL: <http://lists.infradead.org/pipermail/libertas-dev/attachments/20200930/7c4c4347/attachment-0001.p7s>