diff options
| author | Heiko Carstens <hca@linux.ibm.com> | 2024-03-07 13:28:10 +0100 |
|---|---|---|
| committer | Heiko Carstens <hca@linux.ibm.com> | 2024-03-13 09:23:46 +0100 |
| commit | bdd0ab97506cf3f4667b8c42d5b20606c2321f46 (patch) | |
| tree | 7ced40e753380dc90f88c6168990806772344fff /drivers | |
| parent | s390/virtio_ccw: avoid converting dma addresses / handles (diff) | |
| download | linux-bdd0ab97506cf3f4667b8c42d5b20606c2321f46.tar.xz linux-bdd0ab97506cf3f4667b8c42d5b20606c2321f46.zip | |
s390/dasd: remove superfluous virt_to_phys() conversion
Only the last 12 bits of virtual / physical addresses are used when masking
with IDA_BLOCK_SIZE - 1. Given that the bits are the same regardless of
virtual or physical address, remove the virtual to physical address
conversion.
Reviewed-by: Stefan Haberland <sth@linux.ibm.com>
Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/s390/block/dasd_eckd.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 698817648053..71fa4488aa47 100644 --- a/drivers/s390/block/dasd_eckd.c +++ b/drivers/s390/block/dasd_eckd.c @@ -4259,7 +4259,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track( * idaw ends */ if (!idaw_dst) { - if ((__u32)virt_to_phys(dst) & (IDA_BLOCK_SIZE - 1)) { + if ((unsigned long)(dst) & (IDA_BLOCK_SIZE - 1)) { dasd_sfree_request(cqr, startdev); return ERR_PTR(-ERANGE); } else @@ -4279,7 +4279,7 @@ static struct dasd_ccw_req *dasd_eckd_build_cp_cmd_track( * idal_create_words will handle cases where idaw_len * is larger then IDA_BLOCK_SIZE */ - if (!((__u32)virt_to_phys(idaw_dst + idaw_len) & (IDA_BLOCK_SIZE - 1))) + if (!((unsigned long)(idaw_dst + idaw_len) & (IDA_BLOCK_SIZE - 1))) end_idaw = 1; /* We also need to end the idaw at track end */ if (!len_to_track_end) { |