MIPS: IRQ Stack: Fix erroneous jal to plat_irq_dispatch
authorMatt Redfearn <matt.redfearn@imgtec.com>
Wed, 25 Jan 2017 17:00:25 +0000 (17:00 +0000)
committerJames Hogan <james.hogan@imgtec.com>
Mon, 13 Feb 2017 18:58:39 +0000 (18:58 +0000)
commitc25f8064c1d5731a2ce5664def890140dcdd3e5c
tree2b57a262af12d409bf704692776dd29099a8e45e
parent6e5b95cdbd0e9a87bc4b6ca173ae7f4f6a0f3e37
MIPS: IRQ Stack: Fix erroneous jal to plat_irq_dispatch

Commit dda45f701c9d ("MIPS: Switch to the irq_stack in interrupts")
changed both the normal and vectored interrupt handlers. Unfortunately
the vectored version, "except_vec_vi_handler", was incorrectly modified
to unconditionally jal to plat_irq_dispatch, rather than doing a jalr to
the vectored handler that has been set up. This is ok for many platforms
which set the vectored handler to plat_irq_dispatch anyway, but will
cause problems with platforms that use other handlers.

Fixes: dda45f701c9d ("MIPS: Switch to the irq_stack in interrupts")
Signed-off-by: Matt Redfearn <matt.redfearn@imgtec.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Paul Burton <paul.burton@imgtec.com>
Cc: linux-mips@linux-mips.org
Patchwork: https://patchwork.linux-mips.org/patch/15110/
Signed-off-by: James Hogan <james.hogan@imgtec.com>
arch/mips/kernel/genex.S