staging: tidspbridge: remove gs memory allocator

Remove unnecessary wrappers for linux kernel memory
allocation primitives.

Signed-off-by: Ionut Nicu <ionut.nicu@mindbit.ro>
Signed-off-by: Omar Ramirez Luna <omar.ramirez@ti.com>

drivers/staging/tidspbridge/Makefile

@@ -1,6 +1,6 @@
 obj-$(CONFIG_TIDSPBRIDGE)	+= bridgedriver.o
 
-libgen = gen/gb.o gen/gs.o gen/gh.o gen/uuidutil.o
+libgen = gen/gb.o gen/gh.o gen/uuidutil.o
 libcore = core/chnl_sm.o core/msg_sm.o core/io_sm.o core/tiomap3430.o \
 		core/tiomap3430_pwr.o core/tiomap_io.o \
 		core/ue_deh.o core/wdt.o core/dsp-clock.o core/sync.o

drivers/staging/tidspbridge/gen/gb.c

@@ -19,7 +19,6 @@
 /*  ----------------------------------- DSP/BIOS Bridge */
 #include <linux/types.h>
 /*  ----------------------------------- This */
-#include <dspbridge/gs.h>
 #include <dspbridge/gb.h>
 
 struct gb_t_map {
@@ -52,17 +51,17 @@ struct gb_t_map *gb_create(u32 len)
 {
 	struct gb_t_map *map;
 	u32 i;
-	map = (struct gb_t_map *)gs_alloc(sizeof(struct gb_t_map));
+	map = kzalloc(sizeof(struct gb_t_map), GFP_KERNEL);
 	if (map != NULL) {
 		map->len = len;
 		map->wcnt = len / BITS_PER_LONG + 1;
-		map->words = (u32 *) gs_alloc(map->wcnt * sizeof(u32));
+		map->words = kzalloc(map->wcnt * sizeof(u32), GFP_KERNEL);
 		if (map->words != NULL) {
 			for (i = 0; i < map->wcnt; i++)
 				map->words[i] = 0L;
 
 		} else {
-			gs_frees(map, sizeof(struct gb_t_map));
+			kfree(map);
 			map = NULL;
 		}
 	}
@@ -78,8 +77,8 @@ struct gb_t_map *gb_create(u32 len)
 
 void gb_delete(struct gb_t_map *map)
 {
-	gs_frees(map->words, map->wcnt * sizeof(u32));
-	gs_frees(map, sizeof(struct gb_t_map));
+	kfree(map->words);
+	kfree(map);
 }
 
 /*

drivers/staging/tidspbridge/gen/gh.c

@@ -17,9 +17,6 @@
 #include <linux/types.h>
 
 #include <dspbridge/host_os.h>
-
-#include <dspbridge/gs.h>
-
 #include <dspbridge/gh.h>
 
 struct element {
@@ -37,8 +34,6 @@ struct gh_t_hash_tab {
 };
 
 static void noop(void *p);
-static s32 cur_init;
-static void myfree(void *ptr, s32 size);
 
 /*
  *  ======== gh_create ========
@@ -51,8 +46,7 @@ struct gh_t_hash_tab *gh_create(u16 max_bucket, u16 val_size,
 {
 	struct gh_t_hash_tab *hash_tab;
 	u16 i;
-	hash_tab =
-	    (struct gh_t_hash_tab *)gs_alloc(sizeof(struct gh_t_hash_tab));
+	hash_tab = kzalloc(sizeof(struct gh_t_hash_tab), GFP_KERNEL);
 	if (hash_tab == NULL)
 		return NULL;
 	hash_tab->max_bucket = max_bucket;
@@ -62,7 +56,7 @@ struct gh_t_hash_tab *gh_create(u16 max_bucket, u16 val_size,
 	hash_tab->delete = delete == NULL ? noop : delete;
 
 	hash_tab->buckets = (struct element **)
-	    gs_alloc(sizeof(struct element *) * max_bucket);
+	    kzalloc(sizeof(struct element *) * max_bucket, GFP_KERNEL);
 	if (hash_tab->buckets == NULL) {
 		gh_delete(hash_tab);
 		return NULL;
@@ -89,17 +83,14 @@ void gh_delete(struct gh_t_hash_tab *hash_tab)
 				     elem = next) {
 					next = elem->next;
 					(*hash_tab->delete) (elem->data);
-					myfree(elem,
-					       sizeof(struct element) - 1 +
-					       hash_tab->val_size);
+					kfree(elem);
 				}
 			}
 
-			myfree(hash_tab->buckets, sizeof(struct element *)
-			       * hash_tab->max_bucket);
+			kfree(hash_tab->buckets);
 		}
 
-		myfree(hash_tab, sizeof(struct gh_t_hash_tab));
+		kfree(hash_tab);
 	}
 }
 
@@ -109,9 +100,7 @@ void gh_delete(struct gh_t_hash_tab *hash_tab)
 
 void gh_exit(void)
 {
-	if (cur_init-- == 1)
-		gs_exit();
-
+	/* Do nothing */
 }
 
 /*
@@ -138,8 +127,7 @@ void *gh_find(struct gh_t_hash_tab *hash_tab, void *key)
 
 void gh_init(void)
 {
-	if (cur_init++ == 0)
-		gs_init();
+	/* Do nothing */
 }
 
 /*
@@ -152,8 +140,8 @@ void *gh_insert(struct gh_t_hash_tab *hash_tab, void *key, void *value)
 	u16 i;
 	char *src, *dst;
 
-	elem = (struct element *)gs_alloc(sizeof(struct element) - 1 +
-					  hash_tab->val_size);
+	elem = kzalloc(sizeof(struct element) - 1 + hash_tab->val_size,
+			GFP_KERNEL);
 	if (elem != NULL) {
 
 		dst = (char *)elem->data;
@@ -180,14 +168,6 @@ static void noop(void *p)
 	p = p;			/* stifle compiler warning */
 }
 
-/*
- *  ======== myfree ========
- */
-static void myfree(void *ptr, s32 size)
-{
-	gs_free(ptr);
-}
-
 #ifdef CONFIG_TIDSPBRIDGE_BACKTRACE
 /**
  * gh_iterate() - This function goes through all the elements in the hash table

drivers/staging/tidspbridge/gen/gs.c

@@ -1,88 +0,0 @@
-/*
- * gs.c
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * General storage memory allocator services.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#include <linux/types.h>
-/*  ----------------------------------- DSP/BIOS Bridge */
-#include <dspbridge/dbdefs.h>
-
-/*  ----------------------------------- This */
-#include <dspbridge/gs.h>
-
-#include <linux/slab.h>
-
-/*  ----------------------------------- Globals */
-static u32 cumsize;
-
-/*
- *  ======== gs_alloc ========
- *  purpose:
- *      Allocates memory of the specified size.
- */
-void *gs_alloc(u32 size)
-{
-	void *p;
-
-	p = kzalloc(size, GFP_KERNEL);
-	if (p == NULL)
-		return NULL;
-	cumsize += size;
-	return p;
-}
-
-/*
- *  ======== gs_exit ========
- *  purpose:
- *      Discontinue the usage of the GS module.
- */
-void gs_exit(void)
-{
-	/* Do nothing */
-}
-
-/*
- *  ======== gs_free ========
- *  purpose:
- *      Frees the memory.
- */
-void gs_free(void *ptr)
-{
-	kfree(ptr);
-	/* ack! no size info */
-	/* cumsize -= size; */
-}
-
-/*
- *  ======== gs_frees ========
- *  purpose:
- *      Frees the memory.
- */
-void gs_frees(void *ptr, u32 size)
-{
-	kfree(ptr);
-	cumsize -= size;
-}
-
-/*
- *  ======== gs_init ========
- *  purpose:
- *      Initializes the GS module.
- */
-void gs_init(void)
-{
-	/* Do nothing */
-}

drivers/staging/tidspbridge/include/dspbridge/gs.h

@@ -1,59 +0,0 @@
-/*
- * gs.h
- *
- * DSP-BIOS Bridge driver support functions for TI OMAP processors.
- *
- * Memory allocation/release wrappers.  This module allows clients to
- * avoid OS spacific issues related to memory allocation.  It also provides
- * simple diagnostic capabilities to assist in the detection of memory
- * leaks.
- *
- * Copyright (C) 2005-2006 Texas Instruments, Inc.
- *
- * This package is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- *
- * THIS PACKAGE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR
- * IMPLIED WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED
- * WARRANTIES OF MERCHANTIBILITY AND FITNESS FOR A PARTICULAR PURPOSE.
- */
-
-#ifndef GS_
-#define GS_
-
-/*
- *  ======== gs_alloc ========
- *  Alloc size bytes of space.  Returns pointer to space
- *  allocated, otherwise NULL.
- */
-extern void *gs_alloc(u32 size);
-
-/*
- *  ======== gs_exit ========
- *  Module exit.  Do not change to "#define gs_init()"; in
- *  some environments this operation must actually do some work!
- */
-extern void gs_exit(void);
-
-/*
- *  ======== gs_free ========
- *  Free space allocated by gs_alloc() or GS_calloc().
- */
-extern void gs_free(void *ptr);
-
-/*
- *  ======== gs_frees ========
- *  Free space allocated by gs_alloc() or GS_calloc() and assert that
- *  the size of the allocation is size bytes.
- */
-extern void gs_frees(void *ptr, u32 size);
-
-/*
- *  ======== gs_init ========
- *  Module initialization.  Do not change to "#define gs_init()"; in
- *  some environments this operation must actually do some work!
- */
-extern void gs_init(void);
-
-#endif /*GS_ */