lin_gadget: use common linux/compat.h

Merge our duplicate definitions with the common header.

Also fix drivers/usb/gadget/s3c_udc_otg_xfer_dma.c to
use min() instead of min_t() since we remove the latter
from compat.h.

Additionally use memalign() directly as the lin_gadget
specific kmalloc() macro is removed from lin_gadget_compat.h
by this patch.

Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Signed-off-by: Anatolij Gustschin <agust@denx.de>
Cc: Lukasz Majewski <l.majewski@samsung.com>

drivers/usb/gadget/s3c_udc_otg.c

@@ -671,7 +671,7 @@ static struct usb_request *s3c_alloc_request(struct usb_ep *ep,
 
 	debug("%s: %s %p\n", __func__, ep->name, ep);
 
-	req = kmalloc(sizeof *req, gfp_flags);
+	req = memalign(CONFIG_SYS_CACHELINE_SIZE, sizeof(*req));
 	if (!req)
 		return 0;
 
@@ -865,7 +865,8 @@ int s3c_udc_probe(struct s3c_plat_otg_data *pdata)
 	the_controller = dev;
 
 	for (i = 0; i < S3C_MAX_ENDPOINTS+1; i++) {
-		dev->dma_buf[i] = kmalloc(DMA_BUFFER_SIZE, GFP_KERNEL);
+		dev->dma_buf[i] = memalign(CONFIG_SYS_CACHELINE_SIZE,
+					   DMA_BUFFER_SIZE);
 		dev->dma_addr[i] = (dma_addr_t) dev->dma_buf[i];
 		invalidate_dcache_range((unsigned long) dev->dma_buf[i],
 					(unsigned long) (dev->dma_buf[i]

drivers/usb/gadget/s3c_udc_otg_xfer_dma.c

@@ -168,7 +168,7 @@ int setdma_tx(struct s3c_ep *ep, struct s3c_request *req)
 	length = req->req.length - req->req.actual;
 
 	if (ep_num == EP0_CON)
-		length = min_t(length, (u32)ep_maxpacket(ep));
+		length = min(length, (u32)ep_maxpacket(ep));
 
 	ep->len = length;
 	ep->dma_buf = buf;

include/linux/compat.h

@@ -48,5 +48,8 @@
 #define BUG_ON(condition) do { if (condition) BUG(); } while(0)
 #endif /* BUG */
 
+#define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \
+				  , __FILE__, __LINE__); }
+
 #define PAGE_SIZE	4096
 #endif

include/usb/lin_gadget_compat.h

@@ -23,6 +23,8 @@
 #ifndef __LIN_COMPAT_H__
 #define __LIN_COMPAT_H__
 
+#include <linux/compat.h>
+
 /* common */
 #define spin_lock_init(...)
 #define spin_lock(...)
@@ -36,25 +38,12 @@
 #define mutex_lock(...)
 #define mutex_unlock(...)
 
-#define WARN_ON(x) if (x) {printf("WARNING in %s line %d\n" \
-				  , __FILE__, __LINE__); }
-
-#define KERN_WARNING
-#define KERN_ERR
-#define KERN_NOTICE
-#define KERN_DEBUG
-
 #define GFP_KERNEL	0
 
 #define IRQ_HANDLED	1
 
 #define ENOTSUPP	524	/* Operation is not supported */
 
-#define kmalloc(size, type) memalign(CONFIG_SYS_CACHELINE_SIZE, size)
-#define kfree(addr) free(addr)
-
-#define __iomem
-#define min_t min
 #define dma_cache_maint(addr, size, mode) cache_flush()
 void cache_flush(void);