powerpc/prom_init: get rid of PROM_SCRATCH_SIZE

PROM_SCRATCH_SIZE is same as sizeof(prom_scratch)

Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>

diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index d3b0d543d92436af351c581b88c4049386c0a519..523bb99d7676a5ccbdb8f88338cb58dd4ae4a4ff 100644 (file)
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -154,10 +154,8 @@ static struct prom_t __prombss prom;
 
 static unsigned long __prombss prom_entry;
 
-#define PROM_SCRATCH_SIZE 256
-
 static char __prombss of_stdout_device[256];
-static char __prombss prom_scratch[PROM_SCRATCH_SIZE];
+static char __prombss prom_scratch[256];
 
 static unsigned long __prombss dt_header_start;
 static unsigned long __prombss dt_struct_start, dt_struct_end;
@@ -1619,8 +1617,8 @@ static void __init prom_init_mem(void)
                endp = p + (plen / sizeof(cell_t));
 
 #ifdef DEBUG_PROM
-               memset(path, 0, PROM_SCRATCH_SIZE);
-               call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
+               memset(path, 0, sizeof(prom_scratch));
+               call_prom("package-to-path", 3, 1, node, path, sizeof(prom_scratch) - 1);
                prom_debug("  node %s :\n", path);
 #endif /* DEBUG_PROM */
 
@@ -1928,10 +1926,10 @@ static void __init prom_initialize_tce_table(void)
                        local_alloc_bottom = base;
 
                /* It seems OF doesn't null-terminate the path :-( */
-               memset(path, 0, PROM_SCRATCH_SIZE);
+               memset(path, 0, sizeof(prom_scratch));
                /* Call OF to setup the TCE hardware */
                if (call_prom("package-to-path", 3, 1, node,
-                             path, PROM_SCRATCH_SIZE-1) == PROM_ERROR) {
+                             path, sizeof(prom_scratch) - 1) == PROM_ERROR) {
                        prom_printf("package-to-path failed\n");
                }
 
@@ -2292,14 +2290,14 @@ static void __init prom_check_displays(void)
 
                /* It seems OF doesn't null-terminate the path :-( */
                path = prom_scratch;
-               memset(path, 0, PROM_SCRATCH_SIZE);
+               memset(path, 0, sizeof(prom_scratch));
 
                /*
                 * leave some room at the end of the path for appending extra
                 * arguments
                 */
                if (call_prom("package-to-path", 3, 1, node, path,
-                             PROM_SCRATCH_SIZE-10) == PROM_ERROR)
+                             sizeof(prom_scratch) - 10) == PROM_ERROR)
                        continue;
                prom_printf("found display   : %s, opening... ", path);
                
@@ -2495,8 +2493,8 @@ static void __init scan_dt_build_struct(phandle node, unsigned long *mem_start,
 
        /* get it again for debugging */
        path = prom_scratch;
-       memset(path, 0, PROM_SCRATCH_SIZE);
-       call_prom("package-to-path", 3, 1, node, path, PROM_SCRATCH_SIZE-1);
+       memset(path, 0, sizeof(prom_scratch));
+       call_prom("package-to-path", 3, 1, node, path, sizeof(prom_scratch) - 1);
 
        /* get and store all properties */
        prev_name = "";