On Tue, Aug 12, 2025 at 8:09 AM kernel test robot [off-list ref] wrote:

Hi Kuniyuki,

kernel test robot noticed the following build errors:

[auto build test ERROR on net-next/main]

url:    https://github.com/intel-lab-lkp/linux/commits/Kuniyuki-Iwashima/mptcp-Fix-up-subflow-s-memcg-when-CONFIG_SOCK_CGROUP_DATA-n/20250812-013522
base:   net-next/main
patch link:    https://lore.kernel.org/r/20250811173116.2829786-13-kuniyu%40google.com
patch subject: [PATCH v2 net-next 12/12] net-memcg: Decouple controlled memcg from global protocol memory accounting.
config: csky-randconfig-002-20250812 (https://download.01.org/0day-ci/archive/20250812/202508122213.H31XXZsm-lkp@intel.com/config)
compiler: csky-linux-gcc (GCC) 10.5.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20250812/202508122213.H31XXZsm-lkp@intel.com/reproduce)

If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot [off-list ref]
| Closes: https://lore.kernel.org/oe-kbuild-all/202508122213.H31XXZsm-lkp@intel.com/ (local)

All errors (new ones prefixed by >>):

   In file included from include/linux/cleanup.h:5,
                    from include/linux/irqflags.h:17,
                    from include/asm-generic/cmpxchg.h:15,
                    from arch/csky/include/asm/cmpxchg.h:162,
                    from include/asm-generic/atomic.h:12,
                    from arch/csky/include/asm/atomic.h:199,
                    from include/linux/atomic.h:7,
                    from include/crypto/aead.h:11,
                    from net/tls/tls_device.c:32:
   net/tls/tls_device.c: In function 'tls_do_allocation':

quoted

quoted

net/tls/tls_device.c:374:8: error: implicit declaration of function 'sk_should_enter_memory_pressure'; did you mean 'tcp_enter_memory_pressure'? [-Werror=implicit-function-declaration]

     374 |    if (sk_should_enter_memory_pressure(sk))
         |        ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

Oops, forgot to enable kTLS and allmodconfig.
Will add #include <net/proto_memory.h> there in v3.