Error in compiling a Linux kernel

Question

How do you read the errors?

I run after having .config -file at /home/aal/build/kernel.

/usr/src/linux-2.6$ make O=/home/aal/build/kernel/

I get

  ... cut ...
  CC [M]  drivers/staging/go7007/s2250-board.o
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c:24:26: error: s2250-loader.h: No such file or directory
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c: In function ‘read_reg_fp’:
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c:264: warning: passing argument 1 of ‘down_interruptible’ from incompatible pointer type
/usr/src/linux-2.6/include/linux/semaphore.h:43: note: expected ‘struct semaphore *’ but argument is of type ‘struct mutex *’
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c:273: warning: passing argument 1 of ‘up’ from incompatible pointer type
/usr/src/linux-2.6/include/linux/semaphore.h:47: note: expected ‘struct semaphore *’ but argument is of type ‘struct mutex *’
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c: In function ‘s2250_init’:
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c:670: error: implicit declaration of function ‘s2250loader_init’
/usr/src/linux-2.6/drivers/staging/go7007/s2250-board.c:676: error: implicit declaration of function ‘s2250loader_cleanup’
make[4]: *** [drivers/staging/go7007/s2250-board.o] Error 1
make[3]: *** [drivers/staging/go7007] Error 2
make[2]: *** [drivers/staging] Error 2
make[1]: *** [drivers] Error 2
make: *** [sub-make] Error 2

Answer 1

The errors probably all stem from the missing file in the first error.

I'd suspect include path or incomplete install of the sources...

Answer 2

Remove the reference to that driver from your .config and the issue will go away. Alternately if you need the driver appropriate the source.

All of those errors are caused by the missing header.

Answer 3

The errors are in a staging driver, i.e. either not yet, or already not stable driver (take a look e.g. here for a discussion of the staging tree.) You can disable these in kernel config Device Drivers --> Staging Drivers.