Hi Dan,
Many thanks for doing this. I am currently running the 4.6 branch and when
compiling I get the following output:
In file included from include/linux/mutex.h:13:0,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:15,
from include/linux/kobject.h:21,
from include/linux/device.h:17,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:27:
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c: In function
‘crystalhd_map_dio’:
./arch/x86/include/asm/current.h:17:17: error: passing argument 1 of
‘get_user_pages’ makes integer from pointer without a cast [-Werror]
#define current get_current()
^
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:655:23: note: in
expansion of macro ‘current’
res = get_user_pages(current, current->mm, uaddr, nr_pages, rw == READ,
^
In file included from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_lnx.h:34:0,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:30:
include/linux/mm.h:1253:6: note: expected ‘long unsigned int’ but argument is
of type ‘struct task_struct *’
long get_user_pages(unsigned long start, unsigned long nr_pages,
^
In file included from include/linux/mutex.h:13:0,
from include/linux/kernfs.h:13,
from include/linux/sysfs.h:15,
from include/linux/kobject.h:21,
from include/linux/device.h:17,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:27:
./arch/x86/include/asm/current.h:17:17: error: passing argument 2 of
‘get_user_pages’ makes integer from pointer without a cast [-Werror]
#define current get_current()
^
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:655:32: note: in
expansion of macro ‘current’
res = get_user_pages(current, current->mm, uaddr, nr_pages, rw == READ,
^
In file included from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_lnx.h:34:0,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:30:
include/linux/mm.h:1253:6: note: expected ‘long unsigned int’ but argument is
of type ‘struct mm_struct *’
long get_user_pages(unsigned long start, unsigned long nr_pages,
^
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:655:62: error:
passing argument 5 of ‘get_user_pages’ makes pointer from integer without a
cast [-Werror]
res = get_user_pages(current, current->mm, uaddr, nr_pages, rw == READ,
^
In file included from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_lnx.h:34:0,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:30:
include/linux/mm.h:1253:6: note: expected ‘struct page **’ but argument is of
type ‘int’
long get_user_pages(unsigned long start, unsigned long nr_pages,
^
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:655:8: error: too
many arguments to function ‘get_user_pages’
res = get_user_pages(current, current->mm, uaddr, nr_pages, rw == READ,
^
In file included from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_lnx.h:34:0,
from
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:30:
include/linux/mm.h:1253:6: note: declared here
long get_user_pages(unsigned long start, unsigned long nr_pages,
^
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c: In function
‘crystalhd_unmap_dio’:
/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.c:754:5: error:
implicit declaration of function ‘page_cache_release’
[-Werror=implicit-function-declaration]
page_cache_release(page);
^
cc1: all warnings being treated as errors
make[2]: *** [/home/owen/CrystalHD/crystalhd/driver/linux/crystalhd_misc.o]
Error 1
make[1]: *** [_module_/home/owen/CrystalHD/crystalhd/driver/linux] Error 2
make: *** [all] Error 2
I will downgrade to 4.4 and try again there.
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https://bugs.launchpad.net/bugs/1572536
Title:
module fails to load under kernel 4.6 or 4.2
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