From: Heiko Carstens Date: Thu, 7 Mar 2024 12:28:10 +0000 (+0100) Subject: s390/dasd: remove superfluous virt_to_phys() conversion X-Git-Url: http://git.maquefel.me/?a=commitdiff_plain;h=bdd0ab97506cf3f4667b8c42d5b20606c2321f46;p=linux.git 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 Signed-off-by: Heiko Carstens --- diff --git a/drivers/s390/block/dasd_eckd.c b/drivers/s390/block/dasd_eckd.c index 698817648053c..71fa4488aa470 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) {