提交 a1128f8f 编写于 作者: D David Gibson 提交者: Benjamin Herrenschmidt

powerpc/mm: Fix stupid bug in subpge protection handling

Commit d28513bc ("Fix bug in pagetable
cache cleanup with CONFIG_PPC_SUBPAGE_PROT"), itself a fix for
breakage caused by an earlier clean up patch of mine, contains a
stupid bug.  I changed the parameters of the subpage_protection()
function, but failed to update one of the callers.

This patch fixes it, and replaces a void * with a typed pointer so
that the compiler will warn on such an error in future.
Signed-off-by: NDavid Gibson <dwg@au1.ibm.com>
Signed-off-by: NBenjamin Herrenschmidt <benh@kernel.crashing.org>
上级 c3a66359
......@@ -879,7 +879,7 @@ static inline int subpage_protection(struct mm_struct *mm, unsigned long ea)
*/
int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
{
void *pgdir;
pgd_t *pgdir;
unsigned long vsid;
struct mm_struct *mm;
pte_t *ptep;
......@@ -1025,7 +1025,7 @@ int hash_page(unsigned long ea, unsigned long access, unsigned long trap)
else
#endif /* CONFIG_PPC_HAS_HASH_64K */
{
int spp = subpage_protection(pgdir, ea);
int spp = subpage_protection(mm, ea);
if (access & spp)
rc = -2;
else
......
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