[PATCH 3/5] staging/vchi: Fix some pointer math for 64-bit.

From: Eric Anholt
Date: Mon Oct 17 2016 - 15:45:11 EST


These were throwing warnings on aarch64, and all are trivially
converted to longs.

Signed-off-by: Eric Anholt <eric@xxxxxxxxxx>
---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c | 6 +++---
drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c | 5 +++--
2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
index c5255bc6c589..3c7165b34dab 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_2835_arm.c
@@ -121,7 +121,7 @@ int vchiq_platform_init(struct platform_device *pdev, VCHIQ_STATE_T *state)
return -ENOMEM;
}

- WARN_ON(((int)slot_mem & (PAGE_SIZE - 1)) != 0);
+ WARN_ON(((unsigned long)slot_mem & (PAGE_SIZE - 1)) != 0);

vchiq_slot_zero = vchiq_init_slots(slot_mem, slot_mem_size);
if (!vchiq_slot_zero)
@@ -222,7 +222,7 @@ remote_event_signal(REMOTE_EVENT_T *event)
int
vchiq_copy_from_user(void *dst, const void *src, int size)
{
- if ((uint32_t)src < TASK_SIZE) {
+ if ((unsigned long)src < TASK_SIZE) {
return copy_from_user(dst, src, size);
} else {
memcpy(dst, src, size);
@@ -375,7 +375,7 @@ create_pagelist(char __user *buf, size_t count, unsigned short type,
int run, addridx, actual_pages;
unsigned long *need_release;

- offset = (unsigned int)buf & (PAGE_SIZE - 1);
+ offset = (unsigned long)buf & (PAGE_SIZE - 1);
num_pages = (count + offset + PAGE_SIZE - 1) / PAGE_SIZE;

*ppagelist = NULL;
diff --git a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
index 93a6ac75791f..6862cbc0d7a9 100644
--- a/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
+++ b/drivers/staging/vc04_services/interface/vchiq_arm/vchiq_core.c
@@ -1723,7 +1723,7 @@ parse_rx_slots(VCHIQ_STATE_T *state)
min(64, size));
}

- if (((unsigned int)header & VCHIQ_SLOT_MASK) + calc_stride(size)
+ if (((unsigned long)header & VCHIQ_SLOT_MASK) + calc_stride(size)
> VCHIQ_SLOT_SIZE) {
vchiq_log_error(vchiq_core_log_level,
"header %p (msgid %x) - size %x too big for "
@@ -2268,7 +2268,8 @@ get_conn_state_name(VCHIQ_CONNSTATE_T conn_state)
VCHIQ_SLOT_ZERO_T *
vchiq_init_slots(void *mem_base, int mem_size)
{
- int mem_align = (VCHIQ_SLOT_SIZE - (int)mem_base) & VCHIQ_SLOT_MASK;
+ int mem_align = (VCHIQ_SLOT_SIZE -
+ (unsigned long)mem_base) & VCHIQ_SLOT_MASK;
VCHIQ_SLOT_ZERO_T *slot_zero =
(VCHIQ_SLOT_ZERO_T *)((char *)mem_base + mem_align);
int num_slots = (mem_size - mem_align)/VCHIQ_SLOT_SIZE;
--
2.9.3