The STi drm driver correctly warns about invalid format strings
when built with 64-bit dma_addr_t:

sti_hqvdp.c: In function 'sti_hqvdp_vtg_cb':
sti_hqvdp.c:605:119: warning: format '%x' expects argument of type 'unsigned 
int', but argument 5 has type 'dma_addr_t {aka long long unsigned int}' 
[-Wformat=]
sti_hqvdp.c: In function 'sti_hqvdp_atomic_update':
sti_hqvdp.c:931:118: warning: format '%x' expects argument of type 'unsigned 
int', but argument 5 has type 'dma_addr_t {aka long long unsigned int}' 
[-Wformat=]

This could be changed to using the %pad format string, but that
does not work when printing an rvalue, so instead I'm changing
the type in the sti_hqvdp structure to u32, which is what gets
written into the registers anyway.

Signed-off-by: Arnd Bergmann <arnd at arndb.de>
---
 drivers/gpu/drm/sti/sti_hqvdp.c | 14 ++++++++------
 1 file changed, 8 insertions(+), 6 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index ea0690bc77d5..9d698e582011 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -349,7 +349,7 @@ struct sti_hqvdp {
        unsigned int curr_field_count;
        unsigned int last_field_count;
        void *hqvdp_cmd;
-       dma_addr_t hqvdp_cmd_paddr;
+       u32 hqvdp_cmd_paddr;
        struct sti_vtg *vtg;
        bool xp70_initialized;
 };
@@ -372,8 +372,8 @@ static const uint32_t hqvdp_supported_formats[] = {
  */
 static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
 {
-       int curr_cmd, next_cmd;
-       dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+       u32 curr_cmd, next_cmd;
+       u32 cmd = hqvdp->hqvdp_cmd_paddr;
        int i;

        curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
@@ -400,8 +400,8 @@ static int sti_hqvdp_get_free_cmd(struct sti_hqvdp *hqvdp)
  */
 static int sti_hqvdp_get_curr_cmd(struct sti_hqvdp *hqvdp)
 {
-       int curr_cmd;
-       dma_addr_t cmd = hqvdp->hqvdp_cmd_paddr;
+       u32 curr_cmd;
+       u32 cmd = hqvdp->hqvdp_cmd_paddr;
        unsigned int i;

        curr_cmd = readl(hqvdp->regs + HQVDP_MBX_CURRENT_CMD);
@@ -612,19 +612,21 @@ int sti_hqvdp_vtg_cb(struct notifier_block *nb, unsigned 
long evt, void *data)
 static void sti_hqvdp_init(struct sti_hqvdp *hqvdp)
 {
        int size;
+       dma_addr_t dma_addr;

        hqvdp->vtg_nb.notifier_call = sti_hqvdp_vtg_cb;

        /* Allocate memory for the VDP commands */
        size = NB_VDP_CMD * sizeof(struct sti_hqvdp_cmd);
        hqvdp->hqvdp_cmd = dma_alloc_writecombine(hqvdp->dev, size,
-                                        &hqvdp->hqvdp_cmd_paddr,
+                                        &dma_addr,
                                         GFP_KERNEL | GFP_DMA);
        if (!hqvdp->hqvdp_cmd) {
                DRM_ERROR("Failed to allocate memory for VDP cmd\n");
                return;
        }

+       hqvdp->hqvdp_cmd_paddr = (u32)dma_addr;
        memset(hqvdp->hqvdp_cmd, 0, size);
 }

-- 
2.1.0.rc2


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