Subject: Re: [PATCH net-next v4 03/13] net: wwan: t7xx: Add core components

From: kernel test robot <[email-masked]>
Date: Sun, 16 Jan 2022 23:37:44 +0800

Hi Ricardo,

Thank you for the patch! Yet something to improve:

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

url:    https://github.com/0day-ci/linux/commits/Ricardo-Martinez/net-wwan-t7xx-PCIe-driver-for-MediaTek-M-2-modem/20220114-090852
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git 8aaaf2f3af2ae212428f4db1af34214225f5cec3
config: ia64-randconfig-m031-20220116 (https://download.01.org/0day-ci/archive/20220116/[email-masked]/config)
compiler: ia64-linux-gcc (GCC) 11.2.0
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://github.com/0day-ci/linux/commit/e62b3a8ab00c63ee38d0d31cd402a1a40e8b2769
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Ricardo-Martinez/net-wwan-t7xx-PCIe-driver-for-MediaTek-M-2-modem/20220114-090852
        git checkout e62b3a8ab00c63ee38d0d31cd402a1a40e8b2769
        # save the config file to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=ia64 SHELL=/bin/bash drivers/net/

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <[email-masked]>

All errors (new ones prefixed by >>):

   In file included from arch/ia64/include/asm/pgtable.h:153,
                    from include/linux/pgtable.h:6,
                    from include/linux/mm.h:33,
                    from include/linux/scatterlist.h:8,
                    from include/linux/dma-mapping.h:10,
                    from drivers/net/wwan/t7xx/t7xx_pci.c:23:
   arch/ia64/include/asm/mmu_context.h: In function 'reload_context':
>> arch/ia64/include/asm/mmu_context.h:127:48: error: variable 'old_rr4' set but not used [-Werror=unused-but-set-variable]
     127 |         unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4;
         |                                                ^~~~~~~
   cc1: all warnings being treated as errors

vim +/old_rr4 +127 arch/ia64/include/asm/mmu_context.h

^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  121  
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  122  static inline void
badea125d7cbd9 include/asm-ia64/mmu_context.h David Mosberger-Tang 2005-07-25  123  reload_context (nv_mm_context_t context)
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  124  {
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  125  	unsigned long rid;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  126  	unsigned long rid_incr = 0;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16 @127  	unsigned long rr0, rr1, rr2, rr3, rr4, old_rr4;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  128  
0a41e250116058 include/asm-ia64/mmu_context.h Peter Chubb          2005-08-16  129  	old_rr4 = ia64_get_rr(RGN_BASE(RGN_HPAGE));
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  130  	rid = context << 3;	/* make space for encoding the region number */
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  131  	rid_incr = 1 << 8;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  132  
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  133  	/* encode the region id, preferred page size, and VHPT enable bit: */
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  134  	rr0 = (rid << 8) | (PAGE_SHIFT << 2) | 1;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  135  	rr1 = rr0 + 1*rid_incr;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  136  	rr2 = rr0 + 2*rid_incr;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  137  	rr3 = rr0 + 3*rid_incr;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  138  	rr4 = rr0 + 4*rid_incr;
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  139  #ifdef  CONFIG_HUGETLB_PAGE
^1da177e4c3f41 include/asm-ia64/mmu_context.h Linus Torvalds       2005-04-16  140  	rr4 = (rr4 & (~(0xfcUL))) | (old_rr4 & 0xfc);
0a41e250116058 include/asm-ia64/mmu_context.h Peter Chubb          2005-08-16  141  

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0-DAY CI Kernel Test Service, Intel Corporation
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