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path: root/drivers/staging/unisys/visorutil/memregion_direct.c
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Diffstat (limited to 'drivers/staging/unisys/visorutil/memregion_direct.c')
-rw-r--r--drivers/staging/unisys/visorutil/memregion_direct.c64
1 files changed, 31 insertions, 33 deletions
diff --git a/drivers/staging/unisys/visorutil/memregion_direct.c b/drivers/staging/unisys/visorutil/memregion_direct.c
index 65bc07b947db..33522cc8c22c 100644
--- a/drivers/staging/unisys/visorutil/memregion_direct.c
+++ b/drivers/staging/unisys/visorutil/memregion_direct.c
@@ -26,7 +26,7 @@
#define MYDRVNAME "memregion"
-struct MEMREGION_Tag {
+struct memregion {
HOSTADDRESS physaddr;
ulong nbytes;
void __iomem *mapped;
@@ -34,15 +34,15 @@ struct MEMREGION_Tag {
BOOL overlapped;
};
-static BOOL mapit(MEMREGION *memregion);
-static void unmapit(MEMREGION *memregion);
+static BOOL mapit(struct memregion *memregion);
+static void unmapit(struct memregion *memregion);
-MEMREGION *
+struct memregion *
visor_memregion_create(HOSTADDRESS physaddr, ulong nbytes)
{
- MEMREGION *rc = NULL;
- MEMREGION *memregion = kzalloc(sizeof(MEMREGION),
- GFP_KERNEL | __GFP_NORETRY);
+ struct memregion *rc = NULL;
+ struct memregion *memregion = kzalloc(sizeof(*memregion),
+ GFP_KERNEL | __GFP_NORETRY);
if (memregion == NULL) {
ERRDRV("visor_memregion_create allocation failed");
return NULL;
@@ -52,24 +52,23 @@ visor_memregion_create(HOSTADDRESS physaddr, ulong nbytes)
memregion->overlapped = FALSE;
if (!mapit(memregion)) {
rc = NULL;
- goto Away;
+ goto cleanup;
}
rc = memregion;
-Away:
+cleanup:
if (rc == NULL) {
- if (memregion != NULL) {
- visor_memregion_destroy(memregion);
- memregion = NULL;
- }
+ visor_memregion_destroy(memregion);
+ memregion = NULL;
}
return rc;
}
EXPORT_SYMBOL_GPL(visor_memregion_create);
-MEMREGION *
-visor_memregion_create_overlapped(MEMREGION *parent, ulong offset, ulong nbytes)
+struct memregion *
+visor_memregion_create_overlapped(struct memregion *parent, ulong offset,
+ ulong nbytes)
{
- MEMREGION *memregion = NULL;
+ struct memregion *memregion = NULL;
if (parent == NULL) {
ERRDRV("%s parent is NULL", __func__);
@@ -85,7 +84,7 @@ visor_memregion_create_overlapped(MEMREGION *parent, ulong offset, ulong nbytes)
__func__, offset, nbytes);
return NULL;
}
- memregion = kzalloc(sizeof(MEMREGION), GFP_KERNEL|__GFP_NORETRY);
+ memregion = kzalloc(sizeof(*memregion), GFP_KERNEL|__GFP_NORETRY);
if (memregion == NULL) {
ERRDRV("%s allocation failed", __func__);
return NULL;
@@ -93,23 +92,23 @@ visor_memregion_create_overlapped(MEMREGION *parent, ulong offset, ulong nbytes)
memregion->physaddr = parent->physaddr + offset;
memregion->nbytes = nbytes;
- memregion->mapped = ((u8 __iomem *) (parent->mapped)) + offset;
+ memregion->mapped = ((u8 __iomem *)(parent->mapped)) + offset;
memregion->requested = FALSE;
memregion->overlapped = TRUE;
return memregion;
}
EXPORT_SYMBOL_GPL(visor_memregion_create_overlapped);
-
static BOOL
-mapit(MEMREGION *memregion)
+mapit(struct memregion *memregion)
{
- ulong physaddr = (ulong) (memregion->physaddr);
+ ulong physaddr = (ulong)(memregion->physaddr);
ulong nbytes = memregion->nbytes;
memregion->requested = FALSE;
if (!request_mem_region(physaddr, nbytes, MYDRVNAME))
- ERRDRV("cannot reserve channel memory @0x%lx for 0x%lx-- no big deal", physaddr, nbytes);
+ ERRDRV("cannot reserve channel memory @0x%lx for 0x%lx-- no big deal",
+ physaddr, nbytes);
else
memregion->requested = TRUE;
memregion->mapped = ioremap_cache(physaddr, nbytes);
@@ -122,42 +121,42 @@ mapit(MEMREGION *memregion)
}
static void
-unmapit(MEMREGION *memregion)
+unmapit(struct memregion *memregion)
{
if (memregion->mapped != NULL) {
iounmap(memregion->mapped);
memregion->mapped = NULL;
}
if (memregion->requested) {
- release_mem_region((ulong) (memregion->physaddr),
+ release_mem_region((ulong)(memregion->physaddr),
memregion->nbytes);
memregion->requested = FALSE;
}
}
HOSTADDRESS
-visor_memregion_get_physaddr(MEMREGION *memregion)
+visor_memregion_get_physaddr(struct memregion *memregion)
{
return memregion->physaddr;
}
EXPORT_SYMBOL_GPL(visor_memregion_get_physaddr);
ulong
-visor_memregion_get_nbytes(MEMREGION *memregion)
+visor_memregion_get_nbytes(struct memregion *memregion)
{
return memregion->nbytes;
}
EXPORT_SYMBOL_GPL(visor_memregion_get_nbytes);
void __iomem *
-visor_memregion_get_pointer(MEMREGION *memregion)
+visor_memregion_get_pointer(struct memregion *memregion)
{
return memregion->mapped;
}
EXPORT_SYMBOL_GPL(visor_memregion_get_pointer);
int
-visor_memregion_resize(MEMREGION *memregion, ulong newsize)
+visor_memregion_resize(struct memregion *memregion, ulong newsize)
{
if (newsize == memregion->nbytes)
return 0;
@@ -176,10 +175,9 @@ visor_memregion_resize(MEMREGION *memregion, ulong newsize)
}
EXPORT_SYMBOL_GPL(visor_memregion_resize);
-
static int
memregion_readwrite(BOOL is_write,
- MEMREGION *memregion, ulong offset,
+ struct memregion *memregion, ulong offset,
void *local, ulong nbytes)
{
if (offset + nbytes > memregion->nbytes) {
@@ -195,7 +193,7 @@ memregion_readwrite(BOOL is_write,
}
int
-visor_memregion_read(MEMREGION *memregion, ulong offset, void *dest,
+visor_memregion_read(struct memregion *memregion, ulong offset, void *dest,
ulong nbytes)
{
return memregion_readwrite(FALSE, memregion, offset, dest, nbytes);
@@ -203,7 +201,7 @@ visor_memregion_read(MEMREGION *memregion, ulong offset, void *dest,
EXPORT_SYMBOL_GPL(visor_memregion_read);
int
-visor_memregion_write(MEMREGION *memregion, ulong offset, void *src,
+visor_memregion_write(struct memregion *memregion, ulong offset, void *src,
ulong nbytes)
{
return memregion_readwrite(TRUE, memregion, offset, src, nbytes);
@@ -211,7 +209,7 @@ visor_memregion_write(MEMREGION *memregion, ulong offset, void *src,
EXPORT_SYMBOL_GPL(visor_memregion_write);
void
-visor_memregion_destroy(MEMREGION *memregion)
+visor_memregion_destroy(struct memregion *memregion)
{
if (memregion == NULL)
return;