This is a note to let you know that I've just added the patch titled
powerpc/ipic: Fix status get and status clear
to the 4.14-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git%3Ba=su...
The filename of the patch is: powerpc-ipic-fix-status-get-and-status-clear.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@vger.kernel.org know about it.
From foo@baz Mon Dec 18 13:28:59 CET 2017
From: Christophe Leroy christophe.leroy@c-s.fr Date: Wed, 18 Oct 2017 11:16:47 +0200 Subject: powerpc/ipic: Fix status get and status clear
From: Christophe Leroy christophe.leroy@c-s.fr
[ Upstream commit 6b148a7ce72a7f87c81cbcde48af014abc0516a9 ]
IPIC Status is provided by register IPIC_SERSR and not by IPIC_SERMR which is the mask register.
Signed-off-by: Christophe Leroy christophe.leroy@c-s.fr Signed-off-by: Michael Ellerman mpe@ellerman.id.au Signed-off-by: Sasha Levin alexander.levin@verizon.com Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- arch/powerpc/sysdev/ipic.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-)
--- a/arch/powerpc/sysdev/ipic.c +++ b/arch/powerpc/sysdev/ipic.c @@ -846,12 +846,12 @@ void ipic_disable_mcp(enum ipic_mcp_irq
u32 ipic_get_mcp_status(void) { - return ipic_read(primary_ipic->regs, IPIC_SERMR); + return ipic_read(primary_ipic->regs, IPIC_SERSR); }
void ipic_clear_mcp_status(u32 mask) { - ipic_write(primary_ipic->regs, IPIC_SERMR, mask); + ipic_write(primary_ipic->regs, IPIC_SERSR, mask); }
/* Return an interrupt vector or 0 if no interrupt is pending. */
Patches currently in stable-queue which might be from christophe.leroy@c-s.fr are
queue-4.14/powerpc-ipic-fix-status-get-and-status-clear.patch