arch/powerpc/platforms/pseries/vas.c:186:13: sparse: sparse: symbol 'pseries_vas_fault_thread_fn' was not declared. Should it be static?

From: kernel test robot
Date: Tue Jul 27 2021 - 07:00:45 EST


tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head: ff1176468d368232b684f75e82563369208bc371
commit: 6d0aaf5e0de00491de136f387ebed55604cedebe powerpc/pseries/vas: Setup IRQ and fault handling
date: 5 weeks ago
config: powerpc-randconfig-s031-20210727 (attached as .config)
compiler: powerpc-linux-gcc (GCC) 10.3.0
reproduce:
wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
chmod +x ~/bin/make.cross
# apt-get install sparse
# sparse version: v0.6.3-341-g8af24329-dirty
# https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6d0aaf5e0de00491de136f387ebed55604cedebe
git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
git fetch --no-tags linus master
git checkout 6d0aaf5e0de00491de136f387ebed55604cedebe
# save the attached .config to linux build tree
COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' O=build_dir ARCH=powerpc SHELL=/bin/bash arch/powerpc/platforms/pseries/ drivers/crypto/nx/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@xxxxxxxxx>


sparse warnings: (new ones prefixed by >>)
>> arch/powerpc/platforms/pseries/vas.c:186:13: sparse: sparse: symbol 'pseries_vas_fault_thread_fn' was not declared. Should it be static?

vim +/pseries_vas_fault_thread_fn +186 arch/powerpc/platforms/pseries/vas.c

177
178 /*
179 * Handle the fault interrupt.
180 * When the fault interrupt is received for each window, query the
181 * hypervisor to get the fault CRB on the specific fault. Then
182 * process the CRB by updating CSB or send signal if the user space
183 * CSB is invalid.
184 * Note: The hypervisor forwards an interrupt for each fault request.
185 * So one fault CRB to process for each H_GET_NX_FAULT hcall.
> 186 */
187 irqreturn_t pseries_vas_fault_thread_fn(int irq, void *data)
188 {
189 struct pseries_vas_window *txwin = data;
190 struct coprocessor_request_block crb;
191 struct vas_user_win_ref *tsk_ref;
192 int rc;
193
194 rc = h_get_nx_fault(txwin->vas_win.winid, (u64)virt_to_phys(&crb));
195 if (!rc) {
196 tsk_ref = &txwin->vas_win.task_ref;
197 vas_dump_crb(&crb);
198 vas_update_csb(&crb, tsk_ref);
199 }
200
201 return IRQ_HANDLED;
202 }
203

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Attachment: .config.gz
Description: application/gzip