From: "Philippe Mathieu-Daudé" <philmd@redhat.com>
To: qemu-devel@nongnu.org
Cc: "Fam Zheng" <fam@euphon.net>, "Hannes Reinecke" <hare@suse.com>,
qemu-block@nongnu.org, qemu-trivial@nongnu.org,
"Paolo Bonzini" <pbonzini@redhat.com>,
"Philippe Mathieu-Daudé" <philmd@redhat.com>
Subject: [PATCH] hw/scsi/megasas: Simplify using the ldst API
Date: Sat, 18 Dec 2021 00:15:42 +0100 [thread overview]
Message-ID: <20211217231542.1461286-1-philmd@redhat.com> (raw)
This code is easier to review using the load/store API.
Signed-off-by: Philippe Mathieu-Daudé <philmd@redhat.com>
---
hw/scsi/megasas.c | 17 +++--------------
1 file changed, 3 insertions(+), 14 deletions(-)
diff --git a/hw/scsi/megasas.c b/hw/scsi/megasas.c
index 619b66ef0f3..066f30e3f22 100644
--- a/hw/scsi/megasas.c
+++ b/hw/scsi/megasas.c
@@ -375,8 +375,7 @@ static int megasas_setup_inquiry(uint8_t *cdb, int pg, int len)
cdb[1] = 0x1;
cdb[2] = pg;
}
- cdb[3] = (len >> 8) & 0xff;
- cdb[4] = (len & 0xff);
+ stw_be_p(&cdb[2], len);
return len;
}
@@ -392,18 +391,8 @@ static void megasas_encode_lba(uint8_t *cdb, uint64_t lba,
} else {
cdb[0] = READ_16;
}
- cdb[2] = (lba >> 56) & 0xff;
- cdb[3] = (lba >> 48) & 0xff;
- cdb[4] = (lba >> 40) & 0xff;
- cdb[5] = (lba >> 32) & 0xff;
- cdb[6] = (lba >> 24) & 0xff;
- cdb[7] = (lba >> 16) & 0xff;
- cdb[8] = (lba >> 8) & 0xff;
- cdb[9] = (lba) & 0xff;
- cdb[10] = (len >> 24) & 0xff;
- cdb[11] = (len >> 16) & 0xff;
- cdb[12] = (len >> 8) & 0xff;
- cdb[13] = (len) & 0xff;
+ stq_be_p(&cdb[2], lba);
+ stl_be_p(&cdb[2 + 8], len);
}
/*
--
2.33.1
next reply other threads:[~2021-12-17 23:16 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-12-17 23:15 Philippe Mathieu-Daudé [this message]
2021-12-18 0:36 ` [PATCH] hw/scsi/megasas: Simplify using the ldst API Richard Henderson
2021-12-18 11:15 ` Philippe Mathieu-Daudé
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