arch/tile: Miscellaneous cleanup changes.

This commit is primarily changes caused by reviewing "sparse"
and "checkpatch" output on our sources, so is somewhat noisy, since
things like "printk() -> pr_err()" (or whatever) throughout the
codebase tend to get tedious to read.  Rather than trying to tease
apart precisely which things changed due to which type of code
review, this commit includes various cleanups in the code:

- sparse: Add declarations in headers for globals.
- sparse: Fix __user annotations.
- sparse: Using gfp_t consistently instead of int.
- sparse: removing functions not actually used.
- checkpatch: Clean up printk() warnings by using pr_info(), etc.;
  also avoid partial-line printks except in bootup code.
  - checkpatch: Use exposed structs rather than typedefs.
  - checkpatch: Change some C99 comments to C89 comments.

In addition, a couple of minor other changes are rolled in
to this commit:

- Add support for a "raise" instruction to cause SIGFPE, etc., to be raised.
- Remove some compat code that is unnecessary when we fully eliminate
  some of the deprecated syscalls from the generic syscall ABI.
- Update the tile_defconfig to reflect current config contents.

Signed-off-by: Chris Metcalf <cmetcalf@tilera.com>
Acked-by: Arnd Bergmann <arnd@arndb.de>

1 files changed, 7 insertions, 2 deletions

diff --git a/arch/tile/include/asm/pgtable.h b/arch/tile/include/asm/pgtable.h
index beb1504e9c1..b3367379d53 100644
--- a/arch/tile/include/asm/pgtable.h
+++ b/arch/tile/include/asm/pgtable.h
@@ -229,9 +229,9 @@ static inline void __pte_clear(pte_t *ptep)
 #define pte_donemigrate(x) hv_pte_set_present(hv_pte_clear_migrating(x))
 
 #define pte_ERROR(e) \
-	printk("%s:%d: bad pte 0x%016llx.\n", __FILE__, __LINE__, pte_val(e))
+	pr_err("%s:%d: bad pte 0x%016llx.\n", __FILE__, __LINE__, pte_val(e))
 #define pgd_ERROR(e) \
-	printk("%s:%d: bad pgd 0x%016llx.\n", __FILE__, __LINE__, pgd_val(e))
+	pr_err("%s:%d: bad pgd 0x%016llx.\n", __FILE__, __LINE__, pgd_val(e))
 
 /*
  * set_pte_order() sets the given PTE and also sanity-checks the
@@ -470,6 +470,11 @@ static inline int pmd_huge_page(pmd_t pmd)
 
 #include <asm-generic/pgtable.h>
 
+/* Support /proc/NN/pgtable API. */
+struct seq_file;
+int arch_proc_pgtable_show(struct seq_file *m, struct mm_struct *mm,
+			   unsigned long vaddr, pte_t *ptep, void **datap);
+
 #endif /* !__ASSEMBLY__ */
 
 #endif /* _ASM_TILE_PGTABLE_H */