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pata_falcon: Avoid type warnings from sparse

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The zero day bot reported some sparse complaints in pata_falcon.c. E.g.

drivers/ata/pata_falcon.c:58:41: warning: cast removes address space '__iomem' of expression
drivers/ata/pata_falcon.c:58:41: warning: incorrect type in argument 1 (different address spaces)
drivers/ata/pata_falcon.c:58:41:    expected unsigned short volatile [noderef] [usertype] __iomem *port
drivers/ata/pata_falcon.c:58:41:    got unsigned short [usertype] *

The same thing shows up in 8 places, all told. Avoid this by removing
unnecessary type casts.

Cc: Jens Axboe <axboe@kernel.dk>
Cc: Michael Schmitz <schmitzmic@gmail.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Reported-by: kernel test robot <lkp@intel.com>
Suggested-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Finn Thain <fthain@linux-m68k.org>
Reviewed-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
This commit is contained in:
Finn Thain 2021-11-26 09:34:19 +11:00 committed by Damien Le Moal
parent d58071a8a7
commit 5fad507790
1 changed files with 8 additions and 8 deletions
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16
drivers/ata/pata_falcon.c
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@ -55,14 +55,14 @@ static unsigned int pata_falcon_data_xfer(struct ata_queued_cmd *qc,
/* Transfer multiple of 2 bytes */
if (rw == READ) {
if (swap)
raw_insw_swapw((u16 *)data_addr, (u16 *)buf, words);
raw_insw_swapw(data_addr, (u16 *)buf, words);
else
raw_insw((u16 *)data_addr, (u16 *)buf, words);
raw_insw(data_addr, (u16 *)buf, words);
} else {
if (swap)
raw_outsw_swapw((u16 *)data_addr, (u16 *)buf, words);
raw_outsw_swapw(data_addr, (u16 *)buf, words);
else
raw_outsw((u16 *)data_addr, (u16 *)buf, words);
raw_outsw(data_addr, (u16 *)buf, words);
}
/* Transfer trailing byte, if any. */
@ -74,16 +74,16 @@ static unsigned int pata_falcon_data_xfer(struct ata_queued_cmd *qc,
if (rw == READ) {
if (swap)
raw_insw_swapw((u16 *)data_addr, (u16 *)pad, 1);
raw_insw_swapw(data_addr, (u16 *)pad, 1);
else
raw_insw((u16 *)data_addr, (u16 *)pad, 1);
raw_insw(data_addr, (u16 *)pad, 1);
*buf = pad[0];
} else {
pad[0] = *buf;
if (swap)
raw_outsw_swapw((u16 *)data_addr, (u16 *)pad, 1);
raw_outsw_swapw(data_addr, (u16 *)pad, 1);
else
raw_outsw((u16 *)data_addr, (u16 *)pad, 1);
raw_outsw(data_addr, (u16 *)pad, 1);
}
words++;
}