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| author | Salyzyn, Mark <mark_salyzyn@adaptec.com> | 2007-03-27 15:07:28 -0400 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2007-04-01 10:25:21 -0500 |
| commit | 4dfb7cbef856689caebd0f498dbd140d1b79954f (patch) | |
| tree | ce9ee4971a82f8b15e9e4c03b0beef4138c1deb2 | |
| parent | 10c9a017f1bd84a7aedaea7029cd5224863197db (diff) | |
| download | linux-4dfb7cbef856689caebd0f498dbd140d1b79954f.tar.gz linux-4dfb7cbef856689caebd0f498dbd140d1b79954f.tar.bz2 linux-4dfb7cbef856689caebd0f498dbd140d1b79954f.zip | |
[SCSI] aacraid: resolve compiler warnings using ptrdiff_t
Unsigned long is not always the same size as a pointer, namely on 32 bit
systems with 64 bit address space. Ptrdiff_t is the same size as a
pointer in all configurations. By using ptrdiff_t we can mitigate the
warning messages on these configurations. There should be no side
effects of this patch.
Signed-off-by: Mark Salyzyn <aacraid@adaptec.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
| -rw-r--r-- | drivers/scsi/aacraid/commctrl.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/aacraid/comminit.c | 4 | ||||
| -rw-r--r-- | drivers/scsi/aacraid/dpcsup.c | 3 |
3 files changed, 5 insertions, 6 deletions
diff --git a/drivers/scsi/aacraid/commctrl.c b/drivers/scsi/aacraid/commctrl.c index 987e35e4078e..72b0393b4596 100644 --- a/drivers/scsi/aacraid/commctrl.c +++ b/drivers/scsi/aacraid/commctrl.c @@ -391,10 +391,8 @@ static int close_getadapter_fib(struct aac_dev * dev, void __user *arg) /* * Extract the fibctx from the input parameters */ - if (fibctx->unique == (u32)(unsigned long)arg) { - /* We found a winner */ + if (fibctx->unique == (u32)(ptrdiff_t)arg) /* We found a winner */ break; - } entry = entry->next; fibctx = NULL; } diff --git a/drivers/scsi/aacraid/comminit.c b/drivers/scsi/aacraid/comminit.c index ae34768987a4..33682ce96a5d 100644 --- a/drivers/scsi/aacraid/comminit.c +++ b/drivers/scsi/aacraid/comminit.c @@ -5,7 +5,7 @@ * based on the old aacraid driver that is.. * Adaptec aacraid device driver for Linux. * - * Copyright (c) 2000 Adaptec, Inc. (aacraid@adaptec.com) + * Copyright (c) 2000-2007 Adaptec, Inc. (aacraid@adaptec.com) * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by @@ -110,7 +110,7 @@ static int aac_alloc_comm(struct aac_dev *dev, void **commaddr, unsigned long co /* * Align the beginning of Headers to commalign */ - align = (commalign - ((unsigned long)(base) & (commalign - 1))); + align = (commalign - ((ptrdiff_t)(base) & (commalign - 1))); base = base + align; phys = phys + align; /* diff --git a/drivers/scsi/aacraid/dpcsup.c b/drivers/scsi/aacraid/dpcsup.c index 4e53f9db1b2c..fbf27f59a311 100644 --- a/drivers/scsi/aacraid/dpcsup.c +++ b/drivers/scsi/aacraid/dpcsup.c @@ -256,7 +256,8 @@ unsigned int aac_intr_normal(struct aac_dev * dev, u32 Index) return 1; } memset(hw_fib, 0, sizeof(struct hw_fib)); - memcpy(hw_fib, (struct hw_fib *)(((unsigned long)(dev->regs.sa)) + (index & ~0x00000002L)), sizeof(struct hw_fib)); + memcpy(hw_fib, (struct hw_fib *)(((ptrdiff_t)(dev->regs.sa)) + + (index & ~0x00000002L)), sizeof(struct hw_fib)); memset(fib, 0, sizeof(struct fib)); INIT_LIST_HEAD(&fib->fiblink); fib->type = FSAFS_NTC_FIB_CONTEXT; |