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From: Matthew Rosato <mjrosato@linux.ibm.com>
To: cohuck@redhat.com, thuth@redhat.com
Cc: pmorel@linux.ibm.com, schnelle@linux.ibm.com, rth@twiddle.net,
	david@redhat.com, pasic@linux.ibm.com, borntraeger@de.ibm.com,
	mst@redhat.com, pbonzini@redhat.com, alex.williamson@redhat.com,
	qemu-s390x@nongnu.org, qemu-devel@nongnu.org,
	kvm@vger.kernel.org
Subject: [PATCH v3 02/10] vfio: Create shared routine for scanning info capabilities
Date: Wed,  7 Oct 2020 15:04:07 -0400	[thread overview]
Message-ID: <1602097455-15658-3-git-send-email-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <1602097455-15658-1-git-send-email-mjrosato@linux.ibm.com>

Rather than duplicating the same loop in multiple locations,
create a static function to do the work.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
 hw/vfio/common.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 13471ae..e47a4d7 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -825,17 +825,12 @@ static void vfio_listener_release(VFIOContainer *container)
     }
 }
 
-struct vfio_info_cap_header *
-vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
+static struct vfio_info_cap_header *
+vfio_get_cap(void *ptr, uint32_t cap_offset, uint16_t id)
 {
     struct vfio_info_cap_header *hdr;
-    void *ptr = info;
-
-    if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) {
-        return NULL;
-    }
 
-    for (hdr = ptr + info->cap_offset; hdr != ptr; hdr = ptr + hdr->next) {
+    for (hdr = ptr + cap_offset; hdr != ptr; hdr = ptr + hdr->next) {
         if (hdr->id == id) {
             return hdr;
         }
@@ -844,6 +839,16 @@ vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
     return NULL;
 }
 
+struct vfio_info_cap_header *
+vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
+{
+    if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) {
+        return NULL;
+    }
+
+    return vfio_get_cap((void *)info, info->cap_offset, id);
+}
+
 static int vfio_setup_region_sparse_mmaps(VFIORegion *region,
                                           struct vfio_region_info *info)
 {
-- 
1.8.3.1


WARNING: multiple messages have this Message-ID (diff)
From: Matthew Rosato <mjrosato@linux.ibm.com>
To: cohuck@redhat.com, thuth@redhat.com
Cc: kvm@vger.kernel.org, pmorel@linux.ibm.com, david@redhat.com,
	schnelle@linux.ibm.com, qemu-s390x@nongnu.org,
	qemu-devel@nongnu.org, pasic@linux.ibm.com,
	borntraeger@de.ibm.com, alex.williamson@redhat.com,
	mst@redhat.com, pbonzini@redhat.com, rth@twiddle.net
Subject: [PATCH v3 02/10] vfio: Create shared routine for scanning info capabilities
Date: Wed,  7 Oct 2020 15:04:07 -0400	[thread overview]
Message-ID: <1602097455-15658-3-git-send-email-mjrosato@linux.ibm.com> (raw)
In-Reply-To: <1602097455-15658-1-git-send-email-mjrosato@linux.ibm.com>

Rather than duplicating the same loop in multiple locations,
create a static function to do the work.

Signed-off-by: Matthew Rosato <mjrosato@linux.ibm.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@redhat.com>
Reviewed-by: Cornelia Huck <cohuck@redhat.com>
---
 hw/vfio/common.c | 21 +++++++++++++--------
 1 file changed, 13 insertions(+), 8 deletions(-)

diff --git a/hw/vfio/common.c b/hw/vfio/common.c
index 13471ae..e47a4d7 100644
--- a/hw/vfio/common.c
+++ b/hw/vfio/common.c
@@ -825,17 +825,12 @@ static void vfio_listener_release(VFIOContainer *container)
     }
 }
 
-struct vfio_info_cap_header *
-vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
+static struct vfio_info_cap_header *
+vfio_get_cap(void *ptr, uint32_t cap_offset, uint16_t id)
 {
     struct vfio_info_cap_header *hdr;
-    void *ptr = info;
-
-    if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) {
-        return NULL;
-    }
 
-    for (hdr = ptr + info->cap_offset; hdr != ptr; hdr = ptr + hdr->next) {
+    for (hdr = ptr + cap_offset; hdr != ptr; hdr = ptr + hdr->next) {
         if (hdr->id == id) {
             return hdr;
         }
@@ -844,6 +839,16 @@ vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
     return NULL;
 }
 
+struct vfio_info_cap_header *
+vfio_get_region_info_cap(struct vfio_region_info *info, uint16_t id)
+{
+    if (!(info->flags & VFIO_REGION_INFO_FLAG_CAPS)) {
+        return NULL;
+    }
+
+    return vfio_get_cap((void *)info, info->cap_offset, id);
+}
+
 static int vfio_setup_region_sparse_mmaps(VFIORegion *region,
                                           struct vfio_region_info *info)
 {
-- 
1.8.3.1



  parent reply	other threads:[~2020-10-07 19:04 UTC|newest]

Thread overview: 36+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-10-07 19:04 [PATCH v3 00/10] Retrieve zPCI hardware information from VFIO Matthew Rosato
2020-10-07 19:04 ` Matthew Rosato
2020-10-07 19:04 ` [PATCH v3 01/10] s390x/pci: Move header files to include/hw/s390x Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09  9:50   ` Cornelia Huck
2020-10-09  9:50     ` Cornelia Huck
2020-10-07 19:04 ` Matthew Rosato [this message]
2020-10-07 19:04   ` [PATCH v3 02/10] vfio: Create shared routine for scanning info capabilities Matthew Rosato
2020-10-07 19:04 ` [PATCH v3 03/10] update-linux-headers: Add vfio_zdev.h Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-07 19:04 ` [PATCH v3 04/10] linux-headers: update against 5.9-rc8 Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-07 19:04 ` [PATCH v3 05/10] s390x/pci: create a header dedicated to PCI CLP Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-07 19:04 ` [PATCH v3 06/10] s390x/pci: use a PCI Group structure Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09 10:53   ` Cornelia Huck
2020-10-09 10:53     ` Cornelia Huck
2020-10-07 19:04 ` [PATCH v3 07/10] s390x/pci: clean up s390 PCI groups Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09 10:54   ` Cornelia Huck
2020-10-09 10:54     ` Cornelia Huck
2020-10-07 19:04 ` [PATCH v3 08/10] s390x/pci: use a PCI Function structure Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09 10:56   ` Cornelia Huck
2020-10-09 10:56     ` Cornelia Huck
2020-10-07 19:04 ` [PATCH v3 09/10] vfio: Add routine for finding VFIO_DEVICE_GET_INFO capabilities Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09  9:53   ` Cornelia Huck
2020-10-09  9:53     ` Cornelia Huck
2020-10-07 19:04 ` [PATCH v3 10/10] s390x/pci: get zPCI function info from host Matthew Rosato
2020-10-07 19:04   ` Matthew Rosato
2020-10-09 15:48   ` Cornelia Huck
2020-10-09 15:48     ` Cornelia Huck
2020-10-09 16:10     ` Matthew Rosato
2020-10-09 16:10       ` Matthew Rosato

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