This is a note to let you know that I've just added the patch titled parisc: parisc-agp requires SBA IOMMU driver to the 4.9-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-parisc-agp-requires-sba-iommu-driver.patch and it can be found in the queue-4.9 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From 9054284e8846b0105aad43a4e7174ca29fffbc44 Mon Sep 17 00:00:00 2001 From: Helge Deller <deller@xxxxxx> Date: Tue, 6 Apr 2021 11:32:52 +0200 Subject: parisc: parisc-agp requires SBA IOMMU driver From: Helge Deller <deller@xxxxxx> commit 9054284e8846b0105aad43a4e7174ca29fffbc44 upstream. Add a dependency to the SBA IOMMU driver to avoid: ERROR: modpost: "sba_list" [drivers/char/agp/parisc-agp.ko] undefined! Reported-by: kernel test robot <lkp@xxxxxxxxx> Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Helge Deller <deller@xxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- drivers/char/agp/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) --- a/drivers/char/agp/Kconfig +++ b/drivers/char/agp/Kconfig @@ -124,7 +124,7 @@ config AGP_HP_ZX1 config AGP_PARISC tristate "HP Quicksilver AGP support" - depends on AGP && PARISC && 64BIT + depends on AGP && PARISC && 64BIT && IOMMU_SBA help This option gives you AGP GART support for the HP Quicksilver AGP bus adapter on HP PA-RISC machines (Ok, just on the C8000 Patches currently in stable-queue which might be from deller@xxxxxx are queue-4.9/parisc-avoid-a-warning-on-u8-cast-for-cmpxchg-on-u8-pointers.patch queue-4.9/parisc-parisc-agp-requires-sba-iommu-driver.patch