This is a note to let you know that I've just added the patch titled
parisc: Fix exported address of os_hpmc handler
to the 4.14-stable tree which can be found at:
http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary
The filename of the patch is:
parisc-fix-exported-address-of-os_hpmc-handler.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
>From 99a3ae51d557d8e38a7aece65678a31f9db215ee Mon Sep 17 00:00:00 2001
From: Helge Deller <deller@xxxxxx>
Date: Sun, 14 Oct 2018 21:58:00 +0200
Subject: parisc: Fix exported address of os_hpmc handler
From: Helge Deller <deller@xxxxxx>
commit 99a3ae51d557d8e38a7aece65678a31f9db215ee upstream.
In the C-code we need to put the physical address of the hpmc handler in
the interrupt vector table (IVA) in order to get HPMCs working. Since
on parisc64 function pointers are indirect (in fact they are function
descriptors) we instead export the address as variable and not as
function.
This reverts a small part of commit f39cce654f9a ("parisc: Add
cfi_startproc and cfi_endproc to assembly code").
Signed-off-by: Helge Deller <deller@xxxxxx>
Cc: <stable@xxxxxxxxxxxxxxx> [4.9+]
Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
---
arch/parisc/kernel/hpmc.S | 3 +--
1 file changed, 1 insertion(+), 2 deletions(-)
--- a/arch/parisc/kernel/hpmc.S
+++ b/arch/parisc/kernel/hpmc.S
@@ -85,7 +85,7 @@ END(hpmc_pim_data)
.import intr_save, code
.align 16
-ENTRY_CFI(os_hpmc)
+ENTRY(os_hpmc)
.os_hpmc:
/*
@@ -302,7 +302,6 @@ os_hpmc_6:
b .
nop
.align 16 /* make function length multiple of 16 bytes */
-ENDPROC_CFI(os_hpmc)
.os_hpmc_end:
Patches currently in stable-queue which might be from deller@xxxxxx are
queue-4.14/parisc-fix-map_pages-to-not-overwrite-existing-pte-entries.patch
queue-4.14/parisc-fix-address-in-hpmc-iva.patch
queue-4.14/parisc-fix-exported-address-of-os_hpmc-handler.patch
