[RFC PATCH 06/23] Add IEEE1275_ADDR helper

[Ram Pai <linuxram@us.ibm.com>]

From: Anton Blanchard <anton@samba.org>

If the target pointer size doesn't match the IEEE1275 cell size, we
need to cast twice to avoid a warning.

Signed-off-by: Ram Pai <linuxram@us.ibm.com>
From: Anton Blanchard <anton@samba.org>
---
 grub-core/disk/ieee1275/ofdisk.c       |  4 ++--
 grub-core/kern/ieee1275/ieee1275.c     | 30 +++++++++++++++---------------
 grub-core/kern/ieee1275/openfw.c       |  6 +++---
 grub-core/lib/ieee1275/datetime.c      |  4 ++--
 grub-core/net/drivers/ieee1275/ofnet.c |  2 +-
 include/grub/ieee1275/ieee1275.h       |  4 +++-
 6 files changed, 26 insertions(+), 24 deletions(-)

diff --git a/grub-core/disk/ieee1275/ofdisk.c b/grub-core/disk/ieee1275/ofdisk.c
index 6870b39..1b72f06 100644
--- a/grub-core/disk/ieee1275/ofdisk.c
+++ b/grub-core/disk/ieee1275/ofdisk.c
@@ -224,7 +224,7 @@ dev_iterate (const struct grub_ieee1275_devalias *alias)
 	return;
     
       INIT_IEEE1275_COMMON (&args.common, "call-method", 2, 3);
-      args.method = (grub_ieee1275_cell_t) "vscsi-report-luns";
+      args.method = IEEE1275_ADDR("vscsi-report-luns");
       args.ihandle = ihandle;
       args.table = 0;
       args.nentries = 0;
@@ -613,7 +613,7 @@ grub_ofdisk_get_block_size (const char *device, grub_uint32_t *block_size)
     return grub_error (GRUB_ERR_UNKNOWN_DEVICE, "can't open device");
 
   INIT_IEEE1275_COMMON (&args_ieee1275.common, "call-method", 2, 2);
-  args_ieee1275.method = (grub_ieee1275_cell_t) "block-size";
+  args_ieee1275.method = IEEE1275_ADDR("block-size");
   args_ieee1275.ihandle = last_ihandle;
   args_ieee1275.result = 1;
 
diff --git a/grub-core/kern/ieee1275/ieee1275.c b/grub-core/kern/ieee1275/ieee1275.c
index 9821702..f933c89 100644
--- a/grub-core/kern/ieee1275/ieee1275.c
+++ b/grub-core/kern/ieee1275/ieee1275.c
@@ -38,7 +38,7 @@ grub_ieee1275_finddevice (const char *name, grub_ieee1275_phandle_t *phandlep)
   args;
 
   INIT_IEEE1275_COMMON (&args.common, "finddevice", 1, 1);
-  args.device = (grub_ieee1275_cell_t) name;
+  args.device = IEEE1275_ADDR(name);
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
     return -1;
@@ -66,8 +66,8 @@ grub_ieee1275_get_property (grub_ieee1275_phandle_t phandle,
 
   INIT_IEEE1275_COMMON (&args.common, "getprop", 4, 1);
   args.phandle = phandle;
-  args.prop = (grub_ieee1275_cell_t) property;
-  args.buf = (grub_ieee1275_cell_t) buf;
+  args.prop = IEEE1275_ADDR(property);
+  args.buf = IEEE1275_ADDR(buf);
   args.buflen = (grub_ieee1275_cell_t) size;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -115,8 +115,8 @@ grub_ieee1275_next_property (grub_ieee1275_phandle_t phandle, char *prev_prop,
 
   INIT_IEEE1275_COMMON (&args.common, "nextprop", 3, 1);
   args.phandle = phandle;
-  args.prev_prop = (grub_ieee1275_cell_t) prev_prop;
-  args.next_prop = (grub_ieee1275_cell_t) prop;
+  args.prev_prop = IEEE1275_ADDR(prev_prop);
+  args.next_prop = IEEE1275_ADDR(prop);
   args.flags = (grub_ieee1275_cell_t) -1;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -139,7 +139,7 @@ grub_ieee1275_get_property_length (grub_ieee1275_phandle_t phandle,
 
   INIT_IEEE1275_COMMON (&args.common, "getproplen", 2, 1);
   args.phandle = phandle;
-  args.prop = (grub_ieee1275_cell_t) prop;
+  args.prop = IEEE1275_ADDR(prop);
   args.length = (grub_ieee1275_cell_t) -1;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -190,7 +190,7 @@ grub_ieee1275_package_to_path (grub_ieee1275_phandle_t phandle,
 
   INIT_IEEE1275_COMMON (&args.common, "package-to-path", 3, 1);
   args.phandle = phandle;
-  args.buf = (grub_ieee1275_cell_t) path;
+  args.buf = IEEE1275_ADDR(path);
   args.buflen = (grub_ieee1275_cell_t) len;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -219,7 +219,7 @@ grub_ieee1275_instance_to_path (grub_ieee1275_ihandle_t ihandle,
 
   INIT_IEEE1275_COMMON (&args.common, "instance-to-path", 3, 1);
   args.ihandle = ihandle;
-  args.buf = (grub_ieee1275_cell_t) path;
+  args.buf = IEEE1275_ADDR(path);
   args.buflen = (grub_ieee1275_cell_t) len;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -247,7 +247,7 @@ grub_ieee1275_write (grub_ieee1275_ihandle_t ihandle, const void *buffer,
 
   INIT_IEEE1275_COMMON (&args.common, "write", 3, 1);
   args.ihandle = ihandle;
-  args.buf = (grub_ieee1275_cell_t) buffer;
+  args.buf = IEEE1275_ADDR(buffer);
   args.len = (grub_ieee1275_cell_t) len;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -273,7 +273,7 @@ grub_ieee1275_read (grub_ieee1275_ihandle_t ihandle, void *buffer,
 
   INIT_IEEE1275_COMMON (&args.common, "read", 3, 1);
   args.ihandle = ihandle;
-  args.buf = (grub_ieee1275_cell_t) buffer;
+  args.buf = IEEE1275_ADDR(buffer);
   args.len = (grub_ieee1275_cell_t) len;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -401,7 +401,7 @@ grub_ieee1275_interpret (const char *command, grub_ieee1275_cell_t *catch)
     return -1;
 
   INIT_IEEE1275_COMMON (&args.common, "interpret", 1, 1);
-  args.command = (grub_ieee1275_cell_t) command;
+  args.command = IEEE1275_ADDR(command);
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
     return -1;
@@ -453,7 +453,7 @@ grub_ieee1275_open (const char *path, grub_ieee1275_ihandle_t *result)
   args;
 
   INIT_IEEE1275_COMMON (&args.common, "open", 1, 1);
-  args.path = (grub_ieee1275_cell_t) path;
+  args.path = IEEE1275_ADDR(path);
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
     return -1;
@@ -548,8 +548,8 @@ grub_ieee1275_set_property (grub_ieee1275_phandle_t phandle,
 
   INIT_IEEE1275_COMMON (&args.common, "setprop", 4, 1);
   args.size = (grub_ieee1275_cell_t) size;
-  args.buf = (grub_ieee1275_cell_t) buf;
-  args.propname = (grub_ieee1275_cell_t) propname;
+  args.buf = IEEE1275_ADDR(buf);
+  args.propname = IEEE1275_ADDR(propname);
   args.phandle = (grub_ieee1275_cell_t) phandle;
 
   if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
@@ -578,7 +578,7 @@ grub_ieee1275_set_color (grub_ieee1275_ihandle_t ihandle,
   args;
 
   INIT_IEEE1275_COMMON (&args.common, "call-method", 6, 1);
-  args.method = (grub_ieee1275_cell_t) "color!";
+  args.method = IEEE1275_ADDR("color!");
   args.ihandle = ihandle;
   args.index = index;
   args.r = r;
diff --git a/grub-core/kern/ieee1275/openfw.c b/grub-core/kern/ieee1275/openfw.c
index ddb7783..a8bbc71 100644
--- a/grub-core/kern/ieee1275/openfw.c
+++ b/grub-core/kern/ieee1275/openfw.c
@@ -285,7 +285,7 @@ grub_ieee1275_map (grub_addr_t phys, grub_addr_t virt, grub_size_t size,
 			6,
 #endif
 			1);
-  args.method = (grub_ieee1275_cell_t) "map";
+  args.method = IEEE1275_ADDR("map");
   args.ihandle = grub_ieee1275_mmu;
 #ifdef __sparc__
   args.phys_high = 0;
@@ -543,8 +543,8 @@ grub_ieee1275_canonicalise_devname (const char *path)
 	return NULL;
 
       INIT_IEEE1275_COMMON (&args.common, "canon", 3, 1);
-      args.path = (grub_ieee1275_cell_t) path;
-      args.buf = (grub_ieee1275_cell_t) buf;
+      args.path = IEEE1275_ADDR(path);
+      args.buf = IEEE1275_ADDR(buf);
       args.inlen = (grub_ieee1275_cell_t) (bufsize - 1);
 
       if (IEEE1275_CALL_ENTRY_FN (&args) == -1)
diff --git a/grub-core/lib/ieee1275/datetime.c b/grub-core/lib/ieee1275/datetime.c
index 74578f1..fa0d3b6 100644
--- a/grub-core/lib/ieee1275/datetime.c
+++ b/grub-core/lib/ieee1275/datetime.c
@@ -84,7 +84,7 @@ grub_get_datetime (struct grub_datetime *datetime)
 
   INIT_IEEE1275_COMMON (&args.common, "call-method", 2, 7);
   args.device = (grub_ieee1275_cell_t) ihandle;
-  args.method = (grub_ieee1275_cell_t) "get-time";
+  args.method = IEEE1275_ADDR("get-time");
 
   status = IEEE1275_CALL_ENTRY_FN (&args);
 
@@ -136,7 +136,7 @@ grub_set_datetime (struct grub_datetime *datetime)
 
   INIT_IEEE1275_COMMON (&args.common, "call-method", 8, 1);
   args.device = (grub_ieee1275_cell_t) ihandle;
-  args.method = (grub_ieee1275_cell_t) "set-time";
+  args.method = IEEE1275_ADDR("set-time");
 
   args.year = datetime->year;
   args.month = datetime->month;
diff --git a/grub-core/net/drivers/ieee1275/ofnet.c b/grub-core/net/drivers/ieee1275/ofnet.c
index eea8e71..ea6456f 100644
--- a/grub-core/net/drivers/ieee1275/ofnet.c
+++ b/grub-core/net/drivers/ieee1275/ofnet.c
@@ -386,7 +386,7 @@ search_net_devices (struct grub_ieee1275_devalias *alias)
       args;
       INIT_IEEE1275_COMMON (&args.common, "interpret", 2, 2);
       args.len = card->txbufsize;
-      args.method = (grub_ieee1275_cell_t) "alloc-mem";
+      args.method = IEEE1275_ADDR("alloc-mem");
 
       if (IEEE1275_CALL_ENTRY_FN (&args) == -1
 	  || args.catch)
diff --git a/include/grub/ieee1275/ieee1275.h b/include/grub/ieee1275/ieee1275.h
index 8e42513..2e5270c 100644
--- a/include/grub/ieee1275/ieee1275.h
+++ b/include/grub/ieee1275/ieee1275.h
@@ -49,8 +49,10 @@ struct grub_ieee1275_common_hdr
   grub_ieee1275_cell_t nr_outs;
 };
 
+#define IEEE1275_ADDR(x)         (grub_uint32_t)(grub_addr_t)(x)
+
 #define INIT_IEEE1275_COMMON(p, xname, xins, xouts) \
-  (p)->name = (grub_ieee1275_cell_t) xname; \
+  (p)->name = (grub_ieee1275_cell_t) IEEE1275_ADDR(xname); \
   (p)->nr_ins = (grub_ieee1275_cell_t) xins; \
   (p)->nr_outs = (grub_ieee1275_cell_t) xouts
 
-- 
1.8.5.3