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From: Janosch Frank <frankja@linux.ibm.com>
To: qemu-devel@nongnu.org
Cc: borntraeger@de.ibm.com, thuth@redhat.com, cohuck@redhat.com,
	david@redhat.com
Subject: [PATCH 4/7] pc-bios: s390x: Rework data initialization
Date: Wed, 15 Jul 2020 05:40:42 -0400	[thread overview]
Message-ID: <20200715094045.381984-5-frankja@linux.ibm.com> (raw)
In-Reply-To: <20200715094045.381984-1-frankja@linux.ibm.com>

Sometimes a memset is nicer to read than multiple struct->data = 0;

Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Pierre Morel <pmorel@linux.ibm.com>
---
 pc-bios/s390-ccw/dasd-ipl.c | 7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

diff --git a/pc-bios/s390-ccw/dasd-ipl.c b/pc-bios/s390-ccw/dasd-ipl.c
index e8f2846740..0543334ed4 100644
--- a/pc-bios/s390-ccw/dasd-ipl.c
+++ b/pc-bios/s390-ccw/dasd-ipl.c
@@ -167,16 +167,13 @@ static void ipl1_fixup(void)
     ccwSeek->cda = ptr2u32(seekData);
     ccwSeek->chain = 1;
     ccwSeek->count = sizeof(*seekData);
-    seekData->reserved = 0x00;
-    seekData->cyl = 0x00;
-    seekData->head = 0x00;
+    memset(seekData, 0, sizeof(*seekData));
 
     ccwSearchID->cmd_code = CCW_CMD_DASD_SEARCH_ID_EQ;
     ccwSearchID->cda = ptr2u32(searchData);
     ccwSearchID->chain = 1;
     ccwSearchID->count = sizeof(*searchData);
-    searchData->cyl = 0;
-    searchData->head = 0;
+    memset(searchData, 0, sizeof(*searchData));
     searchData->record = 2;
 
     /* Go back to Search CCW if correct record not yet found */
-- 
2.25.1



  parent reply	other threads:[~2020-07-15  9:46 UTC|newest]

Thread overview: 33+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-07-15  9:40 [PATCH 0/7] pc-bios: s390x: Cleanup part 2 Janosch Frank
2020-07-15  9:40 ` [PATCH 1/7] pc-bios: s390x: Fix bootmap.c zipl component entry data handling Janosch Frank
2020-07-17 15:05   ` Thomas Huth
2020-07-22  6:50   ` Christian Borntraeger
2020-07-22  7:30     ` Janosch Frank
2020-07-22  7:33       ` Christian Borntraeger
2020-07-22  8:06         ` Janosch Frank
2020-07-15  9:40 ` [PATCH 2/7] pc-bios: s390x: Cleanup jump to ipl code Janosch Frank
2020-07-17 15:13   ` Thomas Huth
2020-07-21 13:07     ` Janosch Frank
2020-07-21 13:54     ` Christian Borntraeger
2020-07-15  9:40 ` [PATCH 3/7] pc-bios: s390x: Remove unneeded dasd-ipl.c reset psw mask changes Janosch Frank
2020-07-20 11:45   ` Thomas Huth
2020-07-20 12:16     ` Janosch Frank
2020-07-21  7:10       ` Thomas Huth
2020-07-15  9:40 ` Janosch Frank [this message]
2020-07-20 11:56   ` [PATCH 4/7] pc-bios: s390x: Rework data initialization Thomas Huth
2020-07-20 12:10     ` Janosch Frank
2020-07-15  9:40 ` [PATCH 5/7] pc-bios: s390x: Replace lowcore offsets with pointers in dasd-ipl.c Janosch Frank
2020-07-21  7:00   ` Thomas Huth
2020-07-15  9:40 ` [PATCH 6/7] pc-bios: s390x: Use PSW constants in start.S Janosch Frank
2020-07-21  7:05   ` Thomas Huth
2020-07-22  6:47     ` Christian Borntraeger
2020-07-15  9:40 ` [PATCH 7/7] pc-bios: s390x: Setup io and ext new psws only once Janosch Frank
2020-07-15 13:13   ` Janosch Frank
2020-07-15 13:16     ` Christian Borntraeger
2020-07-15 14:08       ` [PATCH] pc-bios: s390x: Add a comment to the io and external new PSW setup Janosch Frank
2020-07-21  7:03         ` Thomas Huth
2020-07-22  6:43         ` Christian Borntraeger
2020-07-22  7:24           ` Janosch Frank
2020-07-22  7:39             ` Christian Borntraeger
2020-07-22  8:05               ` Janosch Frank
2020-08-27  9:20                 ` Thomas Huth

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