[yocto] linux-xilinx: SRCPV, SRCREV, LINUX_VERSION and the actually generated kernel version

[Elvis Dowson]

Hi,
      Even though I specify a specific value for SRCREV, as follows, SRCPV is always set to the latest commit it. The generated package folder gets the latest commit id appended because of SRCPV. So what should I do, append SRCREV or SRCPV for recipes that fetch from a git repository?

For example, for the linux-xilinx_git.bb recipe, I have the following

SRCREV = "a5556fb251253ccb674bd22d9703c37f6f8807a8"

SRC_URI = "git://git.xilinx.com/linux-xlnx.git;protocol=git;branch=${KBRANCH} \
           file://defconfig"

LINUX_VERSION = "2.6.37"

PR = "r17"
PV = "${LINUX_VERSION}+git${SRCPV}"
      
NOTE: package linux-xilinx-2.6.37+git1+ed63a4d76efadcb68f5776e4244766ffea226cc4-r17: task do_fetch: Started

The package folder name that gets generated is as follows (SRCPV). I notice that nearly all the recipes that fetch from git use SRCPV. In my specific case, should I be using SRCREV instead? I would like to know when to use SRCPV and SRCREV, while working with recipes that fetch from git repositories.

Best regards,

Elvis Dowson