RE: linux-next: build warning after merge of the scsi tree
From: Long Li
Date: Wed Apr 18 2018 - 17:52:43 EST
> Subject: linux-next: build warning after merge of the scsi tree
> Hi James,
> After merging the scsi tree, today's linux-next build (x86_64
> allmodconfig) produced this warning:
> drivers/scsi/storvsc_drv.c: In function 'storvsc_do_io':
> drivers/scsi/storvsc_drv.c:1402:1: warning: the frame size of 2216 bytes is
> larger than 2048 bytes [-Wframe-larger-than=] } ^
> Introduced by commit
> 0b9bc24b8304 ("csi: storvsc: Select channel based on available percentage of
> ring buffer to write")
Thanks for catching this. This is due to the size of struct cpumask is too big, when CONFIG_NR_CPUS=8192 is used in most kernel config.
I will fix this by moving those data structure to kmalloc pre-allocated when channel is first created.
> Stephen Rothwell