linux-kernel - [broonie-misc:arm64-sme-fixes 3/4] arch/arm64/kernel/fpsimd.c:1394:9: error: too many arguments to function 'sve

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Message-ID: <202208120542.o1cfDXOQ-lkp@intel.com>
Date:   Fri, 12 Aug 2022 05:31:15 +0800
From:   kernel test robot <lkp@...el.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     kbuild-all@...ts.01.org, linux-kernel@...r.kernel.org
Subject: [broonie-misc:arm64-sme-fixes 3/4]
 arch/arm64/kernel/fpsimd.c:1394:9: error: too many arguments to function
 'sve_alloc'

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git arm64-sme-fixes
head:   faced24c84ad18ee30b91d041299519ce6190f28
commit: 6c9a05d1aa66fd95573944dc9bc0f7ce09785129 [3/4] arm64/sme: Don't flush SVE register state when allocating SME storage
config: arm64-buildonly-randconfig-r001-20220811 (https://download.01.org/0day-ci/archive/20220812/202208120542.o1cfDXOQ-lkp@intel.com/config)
compiler: aarch64-linux-gcc (GCC) 12.1.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git/commit/?id=6c9a05d1aa66fd95573944dc9bc0f7ce09785129
        git remote add broonie-misc https://git.kernel.org/pub/scm/linux/kernel/git/broonie/misc.git
        git fetch --no-tags broonie-misc arm64-sme-fixes
        git checkout 6c9a05d1aa66fd95573944dc9bc0f7ce09785129
        # save the config file
        mkdir build_dir && cp config build_dir/.config
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-12.1.0 make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash arch/arm64/

If you fix the issue, kindly add following tag where applicable
Reported-by: kernel test robot <lkp@...el.com>

All errors (new ones prefixed by >>):

   arch/arm64/kernel/fpsimd.c: In function 'do_sve_acc':
>> arch/arm64/kernel/fpsimd.c:1394:9: error: too many arguments to function 'sve_alloc'
    1394 |         sve_alloc(current, true);
         |         ^~~~~~~~~
   In file included from arch/arm64/include/asm/processor.h:377,
                    from include/asm-generic/qrwlock.h:18,
                    from ./arch/arm64/include/generated/asm/qrwlock.h:1,
                    from arch/arm64/include/asm/spinlock.h:9,
                    from include/linux/spinlock.h:93,
                    from include/linux/ipc.h:5,
                    from include/uapi/linux/sem.h:5,
                    from include/linux/sem.h:5,
                    from include/linux/compat.h:14,
                    from arch/arm64/kernel/fpsimd.c:14:
   arch/arm64/include/asm/fpsimd.h:259:20: note: declared here
     259 | static inline void sve_alloc(struct task_struct *task) { }
         |                    ^~~~~~~~~
   arch/arm64/kernel/fpsimd.c: In function 'do_sme_acc':
   arch/arm64/kernel/fpsimd.c:1445:9: error: too many arguments to function 'sve_alloc'
    1445 |         sve_alloc(current, false);
         |         ^~~~~~~~~
   arch/arm64/include/asm/fpsimd.h:259:20: note: declared here
     259 | static inline void sve_alloc(struct task_struct *task) { }
         |                    ^~~~~~~~~


vim +/sve_alloc +1394 arch/arm64/kernel/fpsimd.c

  1374	
  1375	/*
  1376	 * Trapped SVE access
  1377	 *
  1378	 * Storage is allocated for the full SVE state, the current FPSIMD
  1379	 * register contents are migrated across, and the access trap is
  1380	 * disabled.
  1381	 *
  1382	 * TIF_SVE should be clear on entry: otherwise, fpsimd_restore_current_state()
  1383	 * would have disabled the SVE access trap for userspace during
  1384	 * ret_to_user, making an SVE access trap impossible in that case.
  1385	 */
  1386	void do_sve_acc(unsigned long esr, struct pt_regs *regs)
  1387	{
  1388		/* Even if we chose not to use SVE, the hardware could still trap: */
  1389		if (unlikely(!system_supports_sve()) || WARN_ON(is_compat_task())) {
  1390			force_signal_inject(SIGILL, ILL_ILLOPC, regs->pc, 0);
  1391			return;
  1392		}
  1393	
> 1394		sve_alloc(current, true);
  1395		if (!current->thread.sve_state) {
  1396			force_sig(SIGKILL);
  1397			return;
  1398		}
  1399	
  1400		get_cpu_fpsimd_context();
  1401	
  1402		if (test_and_set_thread_flag(TIF_SVE))
  1403			WARN_ON(1); /* SVE access shouldn't have trapped */
  1404	
  1405		/*
  1406		 * Even if the task can have used streaming mode we can only
  1407		 * generate SVE access traps in normal SVE mode and
  1408		 * transitioning out of streaming mode may discard any
  1409		 * streaming mode state.  Always clear the high bits to avoid
  1410		 * any potential errors tracking what is properly initialised.
  1411		 */
  1412		sve_init_regs();
  1413	
  1414		put_cpu_fpsimd_context();
  1415	}
  1416	

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