xtensa: drop ifdef __KERNEL__ from kernel-only headers

These headers are not exported to userspace, so they're never used
without __KERNEL__ defined. Drop these ifdef statements.

Signed-off-by: Max Filippov <[e-mail]>

arch/xtensa/include/asm/atomic.h

···
 
 #include <linux/stringify.h>
 #include <linux/types.h>
-
-#ifdef __KERNEL__
 #include <asm/processor.h>
 #include <asm/cmpxchg.h>
 #include <asm/barrier.h>
···
 
 #define atomic_cmpxchg(v, o, n) ((int)cmpxchg(&((v)->counter), (o), (n)))
 #define atomic_xchg(v, new) (xchg(&((v)->counter), new))
-
-#endif /* __KERNEL__ */
 
 #endif /* _XTENSA_ATOMIC_H */

arch/xtensa/include/asm/bitops.h

···
 #ifndef _XTENSA_BITOPS_H
 #define _XTENSA_BITOPS_H
 
-#ifdef __KERNEL__
-
 #ifndef _LINUX_BITOPS_H
 #error only <linux/bitops.h> can be included directly
 #endif
···
 #include <asm-generic/bitops/hweight.h>
 #include <asm-generic/bitops/lock.h>
 #include <asm-generic/bitops/sched.h>
-
-#endif	/* __KERNEL__ */
 
 #endif	/* _XTENSA_BITOPS_H */

arch/xtensa/include/asm/futex.h

···
 #ifndef _ASM_XTENSA_FUTEX_H
 #define _ASM_XTENSA_FUTEX_H
 
-#ifdef __KERNEL__
-
 #include <linux/futex.h>
 #include <linux/uaccess.h>
 #include <linux/errno.h>
···
 	return ret;
 }
 
-#endif /* __KERNEL__ */
 #endif /* _ASM_XTENSA_FUTEX_H */

arch/xtensa/include/asm/io.h

···
 #ifndef _XTENSA_IO_H
 #define _XTENSA_IO_H
 
-#ifdef __KERNEL__
 #include <asm/byteorder.h>
 #include <asm/page.h>
 #include <asm/vectors.h>
···
 #define bus_to_virt     phys_to_virt
 
 #endif /* CONFIG_MMU */
-
-#endif	/* __KERNEL__ */
 
 #include <asm-generic/io.h>
 

arch/xtensa/include/asm/pci-bridge.h

···
 #ifndef _XTENSA_PCI_BRIDGE_H
 #define _XTENSA_PCI_BRIDGE_H
 
-#ifdef __KERNEL__
-
 struct device_node;
 struct pci_controller;
 
···
 int early_write_config_word(struct pci_controller*, int, int, int, u16);
 int early_write_config_dword(struct pci_controller*, int, int, int, u32);
 
-#endif	/* __KERNEL__ */
 #endif	/* _XTENSA_PCI_BRIDGE_H */

arch/xtensa/include/asm/pci.h

···
 #ifndef _XTENSA_PCI_H
 #define _XTENSA_PCI_H
 
-#ifdef __KERNEL__
-
 /* Can be used to override the logic in pci_scan_bus for skipping
  * already-configured bus numbers - to be used for buggy BIOSes
  * or architectures with incomplete PCI setup by the loader
···
 #define HAVE_PCI_MMAP			1
 #define ARCH_GENERIC_PCI_MMAP_RESOURCE	1
 #define arch_can_pci_mmap_io()		1
-
-#endif /* __KERNEL__ */
 
 /* Generic PCI */
 #include <asm-generic/pci.h>

arch/xtensa/include/asm/pgalloc.h

···
 #ifndef _XTENSA_PGALLOC_H
 #define _XTENSA_PGALLOC_H
 
-#ifdef __KERNEL__
-
 #include <linux/highmem.h>
 #include <linux/slab.h>
 
···
 }
 #define pmd_pgtable(pmd) pmd_page(pmd)
 
-#endif /* __KERNEL__ */
 #endif /* _XTENSA_PGALLOC_H */