Merge tag 'tee-kexec-fixes-for-v5.14' of git://git.linaro.org:/people/jens.wiklander...

tee: Improve support for kexec and kdump

This fixes several bugs uncovered while exercising the OP-TEE, ftpm
(firmware TPM), and tee_bnxt_fw (Broadcom BNXT firmware manager) drivers
with kexec and kdump (emergency kexec) based workflows.

* tag 'tee-kexec-fixes-for-v5.14' of git://git.linaro.org:/people/jens.wiklander/linux-tee:
  firmware: tee_bnxt: Release TEE shm, session, and context during kexec
  tpm_ftpm_tee: Free and unregister TEE shared memory during kexec
  tee: Correct inappropriate usage of TEE_SHM_DMA_BUF flag
  tee: add tee_shm_alloc_kernel_buf()
  optee: Clear stale cache entries during initialization
  optee: fix tee out of memory failure seen during kexec reboot
  optee: Refuse to load the driver under the kdump kernel
  optee: Fix memory leak when failing to register shm pages

Link: https://lore.kernel.org/r/20210726081039.GA2482361@jade
Signed-off-by: Arnd Bergmann <arnd@arndb.de>