[RESEND-PATCH] next-20090730 lguest build breaks with pfn_pmd()

From: Kamalesh Babulal
Date: Mon Aug 03 2009 - 04:29:17 EST


* Randy Dunlap <randy.dunlap@xxxxxxxxxx> [2009-07-31 11:03:56]:

> On Thu, 30 Jul 2009 17:35:33 +0530 Kamalesh Babulal wrote:
>
> > Hi Rusty,
> >
> > next-20090729 allmodconfig build breaks at
> >
> > drivers/lguest/page_tables.c: In function 'setup_pagetables':
> > drivers/lguest/page_tables.c:987: error: incompatible type for argument 2 of 'pfn_pmd'
> > drivers/lguest/page_tables.c:994: error: expected ';' before ')' token
> > drivers/lguest/page_tables.c:994: error: expected statement before ')' token
> > make[2]: *** [drivers/lguest/page_tables.o] Error 1
> >
> > build failure is introduced by commit e07dd6220a4bf81a2549e7e37523a2557547d9d7
> > I have tested the patch for the build failure only.
> >
> > Signed-off-by: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx>
> > --
> > drivers/lguest/page_tables.c | 4 ++--
> > 1 files changed, 2 insertions(+), 2 deletions(-)
> >
> > diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
> > index 8c86446..c610b82 100644
> > --- a/drivers/lguest/page_tables.c
> > +++ b/drivers/lguest/page_tables.c
> > @@ -984,14 +984,14 @@ static unsigned long setup_pagetables(struct lguest *lg,
> > for (i = j = 0; i < mapped_pages && j < PTRS_PER_PMD;
> > i += PTRS_PER_PTE, j++) {
> > pmd = pfn_pmd(((unsigned long)&linear[i] - mem_base)/PAGE_SIZE,
> > - _PAGE_PRESENT | _PAGE_RW | _PAGE_USER);
> > + __pgrot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER));
>
> s/__pgrot/__pgprot/
>
Thanks randy, resending the patch after correcting the typo

Signed-off-by: Kamalesh Babulal <kamalesh@xxxxxxxxxxxxxxxxxx>
--
drivers/lguest/page_tables.c | 4 ++--
1 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/lguest/page_tables.c b/drivers/lguest/page_tables.c
index 8c86446..cf94326 100644
--- a/drivers/lguest/page_tables.c
+++ b/drivers/lguest/page_tables.c
@@ -984,14 +984,14 @@ static unsigned long setup_pagetables(struct lguest *lg,
for (i = j = 0; i < mapped_pages && j < PTRS_PER_PMD;
i += PTRS_PER_PTE, j++) {
pmd = pfn_pmd(((unsigned long)&linear[i] - mem_base)/PAGE_SIZE,
- _PAGE_PRESENT | _PAGE_RW | _PAGE_USER);
+ __pgprot(_PAGE_PRESENT | _PAGE_RW | _PAGE_USER));

if (copy_to_user(&pmds[j], &pmd, sizeof(pmd)) != 0)
return -EFAULT;
}

/* One PGD entry, pointing to that PMD page. */
- pgd = __pgd(((unsigned long)pmds - mem_base) | _PAGE_PRESENT));
+ pgd = __pgd(((unsigned long)pmds - mem_base) | _PAGE_PRESENT);
/* Copy it in as the first PGD entry (ie. addresses 0-1G). */
if (copy_to_user(&pgdir[0], &pgd, sizeof(pgd)) != 0)
return -EFAULT;


Kamalesh
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