Thread (139 messages) 139 messages, 9 authors, 2016-11-24

Re: [PATCH V2 01/68] powerpc/cxl: Use REGION_ID instead of opencoding

From: Michael Ellerman <mpe@ellerman.id.au>
Date: 2016-04-20 03:03:54

On Wed, 2016-04-13 at 08:12 +0530, Aneesh Kumar K.V wrote:
"Aneesh Kumar K.V" [off-list ref] writes:
quoted
Also note that the `~` operation is wrong.

Cc: Frederic Barrat <redacted>
Cc: Andrew Donnellan <redacted>
Acked-by: Ian Munsie <redacted>
Signed-off-by: Aneesh Kumar K.V <redacted>
---
 drivers/misc/cxl/fault.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/misc/cxl/fault.c b/drivers/misc/cxl/fault.c
index 9a8650bcb042..9a236543da23 100644
--- a/drivers/misc/cxl/fault.c
+++ b/drivers/misc/cxl/fault.c
@@ -152,7 +152,7 @@ static void cxl_handle_page_fault(struct cxl_context *ctx,
 	access = _PAGE_PRESENT;
 	if (dsisr & CXL_PSL_DSISR_An_S)
 		access |= _PAGE_RW;
-	if ((!ctx->kernel) || ~(dar & (1ULL << 63)))
+	if ((!ctx->kernel) || (REGION_ID(dar) == USER_REGION_ID))
 		access |= _PAGE_USER;

 	if (dsisr & DSISR_NOHPTE)
Posted an updated version of this patch alone with improved commit
message here

http://mid.gmane.org/1460482475-20782-1-git-send-email-aneesh.kumar@linux.vnet.ibm.com
I never saw it. And that link is empty?

cheers
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