[PATCH] drm/imagination: fix ARRAY_SIZE build error

[Randy Dunlap]

Fix a build error when using GCC 13.2.0 from kernel.org crosstools
by changing ARRAY_SIZE() to the macro PVR_MIPS_PT_PAGE_COUNT:

drivers/gpu/drm/imagination/pvr_vm_mips.c: In function 'pvr_vm_mips_fini':
../include/linux/array_size.h:11:25: warning: overflow in conversion from 'long 
unsigned int' to 'int' changes value from '18446744073709551615' to '-1' 
[-Woverflow]
   11 | #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + 
__must_be_array(arr))
      |                         ^
drivers/gpu/drm/imagination/pvr_vm_mips.c:105:24: note: in expansion of macro 
'ARRAY_SIZE'
  105 |         for (page_nr = ARRAY_SIZE(mips_data->pt_pages) - 1; page_nr >= 
0; page_nr--) {
      |                        ^~~~~~~~~~

Fixes: 927f3e0253c1 ("drm/imagination: Implement MIPS firmware processor and 
MMU support")
Signed-off-by: Randy Dunlap <rdun...@infradead.org>
Cc: Donald Robson <donald.rob...@imgtec.com>
Cc: Maxime Ripard <mrip...@kernel.org>
Cc: Frank Binns <frank.bi...@imgtec.com>
Cc: Matt Coster <matt.cos...@imgtec.com>
Cc: Maarten Lankhorst <maarten.lankho...@linux.intel.com>
Cc: Thomas Zimmermann <tzimmerm...@suse.de>
Cc: David Airlie <airl...@gmail.com>
Cc: Daniel Vetter <dan...@ffwll.ch>
Cc: dri-devel@lists.freedesktop.org
---
 drivers/gpu/drm/imagination/pvr_vm_mips.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff -- a/drivers/gpu/drm/imagination/pvr_vm_mips.c 
b/drivers/gpu/drm/imagination/pvr_vm_mips.c
--- a/drivers/gpu/drm/imagination/pvr_vm_mips.c
+++ b/drivers/gpu/drm/imagination/pvr_vm_mips.c
@@ -46,7 +46,7 @@ pvr_vm_mips_init(struct pvr_device *pvr_
        if (!mips_data)
                return -ENOMEM;
 
-       for (page_nr = 0; page_nr < ARRAY_SIZE(mips_data->pt_pages); page_nr++) 
{
+       for (page_nr = 0; page_nr < PVR_MIPS_PT_PAGE_COUNT; page_nr++) {
                mips_data->pt_pages[page_nr] = alloc_page(GFP_KERNEL | 
__GFP_ZERO);
                if (!mips_data->pt_pages[page_nr]) {
                        err = -ENOMEM;
@@ -102,7 +102,7 @@ pvr_vm_mips_fini(struct pvr_device *pvr_
        int page_nr;
 
        vunmap(mips_data->pt);
-       for (page_nr = ARRAY_SIZE(mips_data->pt_pages) - 1; page_nr >= 0; 
page_nr--) {
+       for (page_nr = PVR_MIPS_PT_PAGE_COUNT - 1; page_nr >= 0; page_nr--) {
                dma_unmap_page(from_pvr_device(pvr_dev)->dev,
                               mips_data->pt_dma_addr[page_nr], PAGE_SIZE, 
DMA_TO_DEVICE);