[syzbot] linux-next build error (12)

Hello,

syzbot found the following issue on:

HEAD commit:    9d49ed9c Add linux-next specific files for 20210329
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=159b39aad00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b55345a2d39e7782
dashboard link: https://syzkaller.appspot.com/bug?extid=78983c59ee6ab57e6fcb

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+78983c59ee6ab57e6fcb@syzkaller.appspotmail.com

failed to run ["make" "-j" "64" "ARCH=x86_64" "bzImage"]: exit status 2

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On Mon, Mar 29, 2021 at 2:53 PM syzbot
[off-list ref] wrote:

Hello,

syzbot found the following issue on:

HEAD commit:    9d49ed9c Add linux-next specific files for 20210329
git tree:       linux-next
console output: https://syzkaller.appspot.com/x/log.txt?x=159b39aad00000
kernel config:  https://syzkaller.appspot.com/x/.config?x=b55345a2d39e7782
dashboard link: https://syzkaller.appspot.com/bug?extid=78983c59ee6ab57e6fcb

IMPORTANT: if you fix the issue, please add the following tag to the commit:
Reported-by: syzbot+78983c59ee6ab57e6fcb@syzkaller.appspotmail.com

failed to run ["make" "-j" "64" "ARCH=x86_64" "bzImage"]: exit status 2

#syz fix:
bpf: tcp: Limit calling some tcp cc functions to CONFIG_DYNAMIC_FTRACE