Add compat.h include to avoid a potential build issue:
io_uring/register.c:281:6: error: call to undeclared function 'in_compat_syscall'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
if (in_compat_syscall()) {
^
1 warning generated.
io_uring/register.c:282:9: error: call to undeclared function 'compat_get_bitmap'; ISO C99 and later do not support implicit function declarations [-Werror,-Wimplicit-function-declaration]
ret = compat_get_bitmap(cpumask_bits(new_mask),
^
Fixes: c43203154d8a ("io_uring/register: move io_uring_register(2) related code to register.c")
Reported-by: Manu Bretelle <chantra@meta.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
#include <linux/slab.h>
#include <linux/uaccess.h>
#include <linux/nospec.h>
+#include <linux/compat.h>
#include <linux/io_uring.h>
#include <linux/io_uring_types.h>
if (len > cpumask_size())
len = cpumask_size();
- if (in_compat_syscall()) {
+#ifdef CONFIG_COMPAT
+ if (in_compat_syscall())
ret = compat_get_bitmap(cpumask_bits(new_mask),
(const compat_ulong_t __user *)arg,
len * 8 /* CHAR_BIT */);
- } else {
+ else
+#endif
ret = copy_from_user(new_mask, arg, len);
- }
if (ret) {
free_cpumask_var(new_mask);