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| author | Denis Efremov <efremov@linux.com> | 2021-04-16 11:34:46 +0300 |
|---|---|---|
| committer | Jens Axboe <axboe@kernel.dk> | 2021-04-20 08:59:03 -0600 |
| commit | 67c07161c5035a68eccd3922b11cb9839f28c8a3 (patch) | |
| tree | b5fc3fbe54c772166c9667fe442223fcfc1802ca /drivers/block/floppy.c | |
| parent | ab50200ab04d105017b1bed8787f44b8725cb39a (diff) | |
| download | linux-67c07161c5035a68eccd3922b11cb9839f28c8a3.tar.gz | |
floppy: cleanups: use ST0 as reply_buffer index 0
Use ST0 as 0 index for reply_buffer array. get_fdc_version() is the only function that uses index 0 directly instead of the ST0 define. Signed-off-by: Denis Efremov <efremov@linux.com> Link: https://lore.kernel.org/r/20210416083449.72700-3-efremov@linux.com Signed-off-by: Jens Axboe <axboe@kernel.dk>
Diffstat (limited to 'drivers/block/floppy.c')
| -rw-r--r-- | drivers/block/floppy.c | 12 |
1 files changed, 6 insertions, 6 deletions
diff --git a/drivers/block/floppy.c b/drivers/block/floppy.c index 960e5791d6f5..df5c32900539 100644 --- a/drivers/block/floppy.c +++ b/drivers/block/floppy.c @@ -4232,7 +4232,7 @@ static char __init get_fdc_version(int fdc) r = result(fdc); if (r <= 0x00) return FDC_NONE; /* No FDC present ??? */ - if ((r == 1) && (reply_buffer[0] == 0x80)) { + if ((r == 1) && (reply_buffer[ST0] == 0x80)) { pr_info("FDC %d is an 8272A\n", fdc); return FDC_8272A; /* 8272a/765 don't know DUMPREGS */ } @@ -4257,12 +4257,12 @@ static char __init get_fdc_version(int fdc) output_byte(fdc, FD_UNLOCK); r = result(fdc); - if ((r == 1) && (reply_buffer[0] == 0x80)) { + if ((r == 1) && (reply_buffer[ST0] == 0x80)) { pr_info("FDC %d is a pre-1991 82077\n", fdc); return FDC_82077_ORIG; /* Pre-1991 82077, doesn't know * LOCK/UNLOCK */ } - if ((r != 1) || (reply_buffer[0] != 0x00)) { + if ((r != 1) || (reply_buffer[ST0] != 0x00)) { pr_info("FDC %d init: UNLOCK: unexpected return of %d bytes.\n", fdc, r); return FDC_UNKNOWN; @@ -4274,11 +4274,11 @@ static char __init get_fdc_version(int fdc) fdc, r); return FDC_UNKNOWN; } - if (reply_buffer[0] == 0x80) { + if (reply_buffer[ST0] == 0x80) { pr_info("FDC %d is a post-1991 82077\n", fdc); return FDC_82077; /* Revised 82077AA passes all the tests */ } - switch (reply_buffer[0] >> 5) { + switch (reply_buffer[ST0] >> 5) { case 0x0: /* Either a 82078-1 or a 82078SL running at 5Volt */ pr_info("FDC %d is an 82078.\n", fdc); @@ -4294,7 +4294,7 @@ static char __init get_fdc_version(int fdc) return FDC_87306; default: pr_info("FDC %d init: 82078 variant with unknown PARTID=%d.\n", - fdc, reply_buffer[0] >> 5); + fdc, reply_buffer[ST0] >> 5); return FDC_82078_UNKN; } } /* get_fdc_version */ |