staging: unisys: visorbus: fix s-Par to boot with option CONFIG_VMAP_STACK set to y

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The root issue is that we are not allowed to have items on the
stack being passed to "DMA" like operations. In this case we have
vmcall operation that was using parameters from the stack.

This patch fixes the issue by moving the variables on stack in
issue_vmcall_io_controlvm_addr() to vmcall_controlvm_addr struct.

Signed-off-by: Sameer Wadgaonkar <sameer.wadgaonkar@unisys.com>
Signed-off-by: David Kershner <david.kershner@unisys.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

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Sameer Wadgaonkar 2017-04-18 16:55:24 -04:00 • committed by Greg Kroah-Hartman

parent 372b9f2276

commit bb1fb8ac39

1 changed files with 19 additions and 14 deletions

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drivers/staging/unisys/visorbus/visorchipset.c

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