Hi Nickolai,

kernel test robot noticed the following build errors:

[auto build test ERROR on linus/master]
[also build test ERROR on v7.3-rc6 next-20261009]
[If your patch is applied to the wrong git tree, kindly drop us a note.
And when submitting patch, we suggest to use '--base' as documented in
https://git-scm.com/docs/git-format-patch#_base_tree_information]

url:    https://github.com/intel-lab-lkp/linux/commits/Nickolai-Zeldovich/riscv-Fix-icache-flush-being-skipped-for-a-second-mm-mapping-an-exec-folio/20261009-181957
base:   linus/master
patch link:    https://lore.kernel.org/r/20261009221957.760606-1-nickolai%40csail.mit.edu
patch subject: [PATCH] riscv: Fix icache flush being skipped for a second mm mapping an exec folio
config: riscv-allnoconfig
compiler: riscv64-linux-gcc (GCC) 16.1.0
reproduce (this is a W=1 build):

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 <lkp@intel.com>
| Closes: https://lore.kernel.org/oe-kbuild-all/202610101731.LMiiYIWh-lkp@intel.com/

All errors (new ones prefixed by >>):

   In file included from include/linux/mmu_context.h:5,
                    from include/linux/cpuset.h:18,
                    from kernel/sched/sched.h:33,
                    from kernel/sched/rq-offsets.c:5:
   arch/riscv/include/asm/mmu_context.h: In function 'init_new_context':
>> arch/riscv/include/asm/mmu_context.h:35:20: error: 'mm_context_t' has no member named 'icache_gen'
      35 |         mm->context.icache_gen = 0;
         |                    ^
   make[3]: *** [scripts/Makefile.build:185: kernel/sched/rq-offsets.s] Error 1
   make[3]: Target 'prepare' not remade because of errors.
   make[2]: *** [Makefile:1425: prepare0] Error 2
   make[2]: Target 'prepare' not remade because of errors.
   make[1]: *** [Makefile:248: __sub-make] Error 2
   make[1]: Target 'prepare' not remade because of errors.
   make: *** [Makefile:248: __sub-make] Error 2
   make: Target 'prepare' not remade because of errors.


vim +35 arch/riscv/include/asm/mmu_context.h

    28	
    29	#define init_new_context init_new_context
    30	static inline int init_new_context(struct task_struct *tsk,
    31				struct mm_struct *mm)
    32	{
    33	#ifdef CONFIG_MMU
    34		atomic_long_set(&mm->context.id, 0);
  > 35		mm->context.icache_gen = 0;
    36	#endif
    37		if (IS_ENABLED(CONFIG_RISCV_ISA_SUPM))
    38			clear_bit(MM_CONTEXT_LOCK_PMLEN, &mm->context.flags);
    39		return 0;
    40	}
    41	

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