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The 'iov_base' member of 'struct iovec' is declared in <uapi/linux/uio.h> with type 'void __user *'. Adding an integer to a void pointer has the same effect as adding an integer to a char pointer in the C language. This means that it is safe to remove the cast in front of the eiv->iov_base pointer. Please note that a similar construct already exists in the iSCSI target driver. From the nthread.c source file: iop->iov_base += rest; iop->iov_len -= rest; This patch does not change any functionality. Signed-off-by: Bart Van Assche <bvanassche@acm.org> git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@5847 d57e44dd-8a1f-0410-8b47-8ef2f437770f
Overview ======== This is the SCST development repository. It contains not a single project SCST as one can think, but a number of them, which are divided as the following: 1. SCST core in scst/ subdirectory 2. Administration utility for SCST core scstadmin in scstadmin/ 3. Target drivers in own subdirectories qla2x00t/, iscsi-scst/, etc. 4. User space programs in usr/ subdirectory, like fileio_tgt. 5. Some various docs in doc/ subdirectory. Those subprojects are in most cases independent from each other, although some of them depend from the SCST core. They put in the single repository only to simplify their development, they are released independently. Thus, use "make all" only if you really need to build everything. Otherwise build only what you need, like for iSCSI-SCST: make scst scst_install iscsi iscsi_install For more information about each subproject see their README files. QLogic target driver ==================== QLogic target driver in qla2x00t/ is the old one, forked from qla2xxx from kernel 2.6.26. It is not maintained anymore and not built by default by the common Makefile targets, like "all". You can find the latest version of this driver in git://git.qlogic.com/scst-qla2xxx.git. It is now maintained by QLogic, hence located in the QLogic's git. To integrate it into the SCST build tree you need: 1. Clone the QLogic git tree somewhere in your system. 2. Create in the SCST root, i.e. this directory, a subdirectory with name qla2x00t_git 3. Symlink drivers/scsi/qla2xxx subdirectory in the cloned git tree to the qla2x00t_git subdirectory Thats all. Now "make all" and other common and QLA specific root Makefile targets "magically" start working. For detail instructions how to setup QLA target build environment see its README or HOWTO. You can still build the old driver using qla_old* root Makefile targets. Vladislav Bolkhovitin <vst@vlnb.net>, http://scst.sourceforge.net