netdev - [PATCH v2] declance: Fix 64-bit compilation warnings

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Message-ID: <alpine.LFD.2.11.1406290246120.15455@eddie.linux-mips.org>
Date:	Sun, 29 Jun 2014 03:10:47 +0100 (BST)
From:	"Maciej W. Rozycki" <macro@...ux-mips.org>
To:	netdev@...r.kernel.org
cc:	Joe Perches <joe@...ches.com>
Subject: [PATCH v2] declance: Fix 64-bit compilation warnings

This fixes compiler warnings:

drivers/net/ethernet/amd/declance.c: In function 'lance_init_ring':
drivers/net/ethernet/amd/declance.c:478: warning: format '%8.8x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'
drivers/net/ethernet/amd/declance.c:487: warning: format '%8.8x' expects type 'unsigned int', but argument 3 has type 'long unsigned int'
drivers/net/ethernet/amd/declance.c:503: warning: cast from pointer to integer of different size
drivers/net/ethernet/amd/declance.c:520: warning: cast from pointer to integer of different size

in 64-bit compilation.  Where the value printed is an offset (whose range 
will always fit) the cast uses a 32-bit type, otherwise, where it is a 
host memory address, the `long' type is used and the width of the number 
printed adjusted according to the size of this type.

Tested with both 32-bit and 64-bit compilation, as well as at the run time 
(with the debug messages affected enabled).

Signed-off-by: Maciej W. Rozycki <macro@...ux-mips.org>
---
 Update from v1 fixes issues with the field width requested observed by 
Joe (thanks!) and myself.  Please apply.

  Maciej

linux-declance-desc-printk.patch
Index: linux-20140623-4maxp64/drivers/net/ethernet/amd/declance.c
===================================================================
--- linux-20140623-4maxp64.orig/drivers/net/ethernet/amd/declance.c
+++ linux-20140623-4maxp64/drivers/net/ethernet/amd/declance.c
@@ -475,7 +475,7 @@ static void lance_init_ring(struct net_d
 	*lib_ptr(ib, rx_ptr, lp->type) = leptr;
 	if (ZERO)
 		printk("RX ptr: %8.8x(%8.8x)\n",
-		       leptr, lib_off(brx_ring, lp->type));
+		       leptr, (uint)lib_off(brx_ring, lp->type));
 
 	/* Setup tx descriptor pointer */
 	leptr = offsetof(struct lance_init_block, btx_ring);
@@ -484,7 +484,7 @@ static void lance_init_ring(struct net_d
 	*lib_ptr(ib, tx_ptr, lp->type) = leptr;
 	if (ZERO)
 		printk("TX ptr: %8.8x(%8.8x)\n",
-		       leptr, lib_off(btx_ring, lp->type));
+		       leptr, (uint)lib_off(btx_ring, lp->type));
 
 	if (ZERO)
 		printk("TX rings:\n");
@@ -499,8 +499,9 @@ static void lance_init_ring(struct net_d
 						/* The ones required by tmd2 */
 		*lib_ptr(ib, btx_ring[i].misc, lp->type) = 0;
 		if (i < 3 && ZERO)
-			printk("%d: 0x%8.8x(0x%8.8x)\n",
-			       i, leptr, (uint)lp->tx_buf_ptr_cpu[i]);
+			printk("%d: 0x%8.8x(%#0*lx)\n",
+			       i, leptr, 2 * (int)sizeof(long) + 2,
+			       (long)lp->tx_buf_ptr_cpu[i]);
 	}
 
 	/* Setup the Rx ring entries */
@@ -516,8 +517,9 @@ static void lance_init_ring(struct net_d
 							     0xf000;
 		*lib_ptr(ib, brx_ring[i].mblength, lp->type) = 0;
 		if (i < 3 && ZERO)
-			printk("%d: 0x%8.8x(0x%8.8x)\n",
-			       i, leptr, (uint)lp->rx_buf_ptr_cpu[i]);
+			printk("%d: 0x%8.8x(%#0*lx)\n",
+			       i, leptr, 2 * (int)sizeof(long) + 2,
+			       (long)lp->rx_buf_ptr_cpu[i]);
 	}
 	iob();
 }
--
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