/usr/src/iscsitarget-1.4.20.3+svn502/patches/ is in iscsitarget-dkms 1.4.20.3+svn502-1.
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/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.14-2.6.18.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.19-2.6.21.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.22.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.23.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.24.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.25-2.6.27.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.28.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.29.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.30.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.31.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.32.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.33-2.6.35.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.36-2.6.37.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.38.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-2.6.39-3.2.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.12.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.13.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.2-3.4.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.5.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.6.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-3.9.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-rhel4.patch
/usr/src/iscsitarget-1.4.20.3+svn502/patches/compat-sles10sp2.patch