From: Al Viro <viro@ftp.linux.org.uk>
To: linux-m68k@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Subject: [PATCH 17/36] m68k: lvalues abuse in mac8390
Date: Thu, 22 Dec 2005 04:50:29 +0000 [thread overview]
Message-ID: <E1EpIPN-0004rx-Jl@ZenIV.linux.org.uk> (raw)
From: Al Viro <viro@zeniv.linux.org.uk>
Date: 1133437188 -0500
cast is not an lvalue
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
---
drivers/net/mac8390.c | 31 ++++++++++++++-----------------
1 files changed, 14 insertions(+), 17 deletions(-)
5e92b04f842396d3347b16327c12406884784e94
diff --git a/drivers/net/mac8390.c b/drivers/net/mac8390.c
index d8c99f0..06cb460 100644
--- a/drivers/net/mac8390.c
+++ b/drivers/net/mac8390.c
@@ -559,55 +559,52 @@ static void mac8390_no_reset(struct net_
/* directly from daynaport.c by Alan Cox */
static void dayna_memcpy_fromcard(struct net_device *dev, void *to, int from, int count)
{
- volatile unsigned short *ptr;
- unsigned short *target=to;
+ volatile unsigned char *ptr;
+ unsigned char *target=to;
from<<=1; /* word, skip overhead */
- ptr=(unsigned short *)(dev->mem_start+from);
+ ptr=(unsigned char *)(dev->mem_start+from);
/* Leading byte? */
if (from&2) {
- *((char *)target)++ = *(((char *)ptr++)-1);
+ *target++ = ptr[-1];
+ ptr += 2;
count--;
}
while(count>=2)
{
- *target++=*ptr++; /* Copy and */
- ptr++; /* skip cruft */
+ *(unsigned short *)target = *(unsigned short volatile *)ptr;
+ ptr += 4; /* skip cruft */
+ target += 2;
count-=2;
}
/* Trailing byte? */
if(count)
- {
- /* Big endian */
- unsigned short v=*ptr;
- *((char *)target)=v>>8;
- }
+ *target = *ptr;
}
static void dayna_memcpy_tocard(struct net_device *dev, int to, const void *from, int count)
{
volatile unsigned short *ptr;
- const unsigned short *src=from;
+ const unsigned char *src=from;
to<<=1; /* word, skip overhead */
ptr=(unsigned short *)(dev->mem_start+to);
/* Leading byte? */
if (to&2) { /* avoid a byte write (stomps on other data) */
- ptr[-1] = (ptr[-1]&0xFF00)|*((unsigned char *)src)++;
+ ptr[-1] = (ptr[-1]&0xFF00)|*src++;
ptr++;
count--;
}
while(count>=2)
{
- *ptr++=*src++; /* Copy and */
+ *ptr++=*(unsigned short *)src; /* Copy and */
ptr++; /* skip cruft */
+ src += 2;
count-=2;
}
/* Trailing byte? */
if(count)
{
- /* Big endian */
- unsigned short v=*src;
/* card doesn't like byte writes */
- *ptr=(*ptr&0x00FF)|(v&0xFF00);
+ *ptr=(*ptr&0x00FF)|(*src << 8);
}
}
--
0.99.9.GIT
reply other threads:[~2005-12-22 4:58 UTC|newest]
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