diff mbox

[v2] block/iscsi: Fix compilation for libiscsi 1.4.0 (API change)

Message ID 1387267030-20148-1-git-send-email-sw@weilnetz.de
State Accepted
Headers show

Commit Message

Stefan Weil Dec. 17, 2013, 7:57 a.m. UTC 
Function iscsi_read10_task got additional parameters starting with version
libiscsi 1.5.0.

libiscsi 1.4.0 is still widely used (Debian wheezy, jessie and other Linux
distributions currently provide packages for QEMU which use it), so we
still need support for this older API.

Reviewed-by: Peter Lieven <pl@kamp.de>
Signed-off-by: Stefan Weil <sw@weilnetz.de>
---

v2: Fixed libscsi -> libiscsi

 block/iscsi.c |    5 ++++-
 configure     |   22 ++++++++++++++++++++++
 2 files changed, 26 insertions(+), 1 deletion(-)

Comments

Stefan Hajnoczi Dec. 17, 2013, 2:10 p.m. UTC | #1 
On Tue, Dec 17, 2013 at 08:57:10AM +0100, Stefan Weil wrote:
> Function iscsi_read10_task got additional parameters starting with version
> libiscsi 1.5.0.
> 
> libiscsi 1.4.0 is still widely used (Debian wheezy, jessie and other Linux
> distributions currently provide packages for QEMU which use it), so we
> still need support for this older API.
> 
> Reviewed-by: Peter Lieven <pl@kamp.de>
> Signed-off-by: Stefan Weil <sw@weilnetz.de>
> ---
> 
> v2: Fixed libscsi -> libiscsi
> 
>  block/iscsi.c |    5 ++++-
>  configure     |   22 ++++++++++++++++++++++
>  2 files changed, 26 insertions(+), 1 deletion(-)

Thanks, applied to my block tree:
https://github.com/stefanha/qemu/commits/block

Stefan
diff mbox

Patch

diff --git a/block/iscsi.c b/block/iscsi.c
index fa69408..294b2c6 100644
--- a/block/iscsi.c
+++ b/block/iscsi.c
@@ -359,7 +359,10 @@  retry:
     default:
         iTask.task = iscsi_read10_task(iscsilun->iscsi, iscsilun->lun, lba,
                                        num_sectors * iscsilun->block_size,
-                                       iscsilun->block_size, 0, 0, 0, 0, 0,
+                                       iscsilun->block_size,
+#if !defined(CONFIG_LIBISCSI_1_4) /* API change from 1.4.0 to 1.5.0 */
+                                       0, 0, 0, 0, 0,
+#endif
                                        iscsi_co_generic_cb, &iTask);
         break;
     }
diff --git a/configure b/configure
index edfea95..2d2c2d4 100755
--- a/configure
+++ b/configure
@@ -3078,6 +3078,21 @@  EOF
   fi
 fi
 
+# We also need to know the API version because there was an
+# API change from 1.4.0 to 1.5.0.
+if test "$libiscsi" = "yes"; then
+  cat >$TMPC <<EOF
+#include <iscsi/iscsi.h>
+int main(void)
+{
+  iscsi_read10_task(0, 0, 0, 0, 0, 0, 0);
+  return 0;
+}
+EOF
+  if compile_prog "" "-liscsi"; then
+    libiscsi_version="1.4.0"
+  fi
+fi
 
 ##########################################
 # Do we need libm
@@ -3805,7 +3820,11 @@  echo "nss used          $smartcard_nss"
 echo "libusb            $libusb"
 echo "usb net redir     $usb_redir"
 echo "GLX support       $glx"
+if test "$libiscsi_version" = "1.4.0"; then
+echo "libiscsi support  $libiscsi (1.4.0)"
+else
 echo "libiscsi support  $libiscsi"
+fi
 echo "build guest agent $guest_agent"
 echo "QGA VSS support   $guest_agent_with_vss"
 echo "seccomp support   $seccomp"
@@ -4137,6 +4156,9 @@  fi
 
 if test "$libiscsi" = "yes" ; then
   echo "CONFIG_LIBISCSI=y" >> $config_host_mak
+  if test "$libiscsi_version" = "1.4.0"; then
+    echo "CONFIG_LIBISCSI_1_4=y" >> $config_host_mak
+  fi
 fi
 
 if test "$seccomp" = "yes"; then