drm/i915: Move u64-to-ptr helpers to general header

From: Leon Romanovsky <[email protected]>

The macro u64_to_ptr() and function ptr_to_u64() are useful enough to be part of general header, so move them there and allow RDMA subsystem reuse them.

Signed-off-by Leon Romanovsky <[email protected]>

---
 drivers/gpu/drm/i915/i915_utils.h | 12 ++----------
 include/linux/kernel.h            | 12 ++++++++++++
 2 files changed, 14 insertions(+), 10 deletions(-)

drivers/gpu/drm/i915/i915_utils.h +2 -10

index 51dbfe5bb418..de3bfda7bf96 100644
@@ -25,6 +25,8 @@
 #ifndef __I915_UTILS_H
 #define __I915_UTILS_H
 
+#include <linux/kernel.h>
+
 #undef WARN_ON
 /* Many gcc seem to no see through this and fall over :( */
 #if 0

@@ -102,16 +104,6 @@
        __T;                                                            \
 })
 
-static inline u64 ptr_to_u64(const void *ptr)
-{
-       return (uintptr_t)ptr;
-}
-
-#define u64_to_ptr(T, x) ({                                            \
-       typecheck(u64, x);                                              \
-       (T *)(uintptr_t)(x);                                            \
-})
-
 #define __mask_next_bit(mask) ({                                       \
        int __idx = ffs(mask) - 1;                                      \
        mask &= ~BIT(__idx);                                            \

include/linux/kernel.h +12 -1

index 6a1eb0b0aad9..a738393c9694 100644
@@ -70,6 +70,18 @@
  */
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 
+static inline u64 ptr_to_u64(const void *ptr)
+{
+       return (uintptr_t)ptr;
+}
+
+#define u64_to_ptr(T, x) (             \
+{                                      \
+       typecheck(u64, x);              \
+       (T *)(uintptr_t)(x);            \
+}                                      \
+)
+
 #define u64_to_user_ptr(x) (           \
 {                                      \
        typecheck(u64, x);              \
--

2.14.3

From: Leon Romanovsky <[email protected]>

The macro u64_to_ptr() and function ptr_to_u64() are useful enough to be part of general header, so move them there and allow RDMA subsystem reuse them.

Signed-off-by Leon Romanovsky <[email protected]>

---
 drivers/gpu/drm/i915/i915_utils.h | 12 ++----------
 include/linux/kernel.h            | 12 ++++++++++++
 2 files changed, 14 insertions(+), 10 deletions(-)

Quoted 6 lines · Leon Romanovsky

From: Leon Romanovsky <[email protected]>

The macro u64_to_ptr() and function ptr_to_u64() are useful enough to be part of general header, so move them there and allow RDMA subsystem reuse them.

Quoted 5 lines

Signed-off-by Leon Romanovsky <[email protected]>

---
 drivers/gpu/drm/i915/i915_utils.h | 12 ++----------
 include/linux/kernel.h            | 12 ++++++++++++
 2 files changed, 14 insertions(+), 10 deletions(-)

This patch and the next one to kernel.h will need to be Ack'd be someone.. But I am not sure who.. AndrewM perhaps?

Jason