Building on Rocky 9.6

[devinrsmith]

First time trying to build nullfsvfs, was getting:

$ make                                                                                           
make -C /lib/modules/5.14.0-570.19.1.el9_6.x86_64/build M=/home/devin/nullfsvfs-0.19 modules                                          
make[1]: Entering directory '/usr/src/kernels/5.14.0-570.19.1.el9_6.x86_64'                                                           
  CC [M]  /home/devin/nullfsvfs-0.19/nullfs.o                                                                                         
/home/devin/nullfsvfs-0.19/nullfs.c: In function ‘nullfs_getattr’:                                                                    
/home/devin/nullfsvfs-0.19/nullfs.c:159:26: error: passing argument 1 of ‘generic_fillattr’ from incompatible pointer type [-Werror=in
compatible-pointer-types]                                                                                                             
  159 |         generic_fillattr(&init_user_ns, inode, stat);                                                                         
      |                          ^~~~~~~~~~~~~                                                                                        
      |                          |                                                                                                    
      |                          struct user_namespace *   

(and a lot of additional "incompatible pointer" errors). I was able to disable this check by adding

EXTRA_CFLAGS += -Wno-incompatible-pointer-types

to the Makefile. I'm not sure if this is safe to do, but it seems to be working.

[scaronni]

Same here. Would be nice to have a fix for this. Thanks!