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authorDenis Efremov <efremov@linux.com>2021-04-16 11:34:46 +0300
committerJens Axboe <axboe@kernel.dk>2021-04-20 17:59:03 +0300
commit67c07161c5035a68eccd3922b11cb9839f28c8a3 (patch)
treeb5fc3fbe54c772166c9667fe442223fcfc1802ca /drivers/block/floppy.c
parentab50200ab04d105017b1bed8787f44b8725cb39a (diff)
downloadlinux-67c07161c5035a68eccd3922b11cb9839f28c8a3.tar.xz
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.c12
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 */