Patch "fbdev: nvidiafb: add depends on HAS_IOPORT" has been added to the 6.16-stable tree

Patch "fbdev: nvidiafb: add depends on HAS_IOPORT" has been added to the 6.16-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    fbdev: nvidiafb: add depends on HAS_IOPORT

to the 6.16-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:
     fbdev-nvidiafb-add-depends-on-has_ioport.patch
and it can be found in the queue-6.16 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 ecdd7df997fd992f0ec70b788e3b12258008a2bf Mon Sep 17 00:00:00 2001
From: Randy Dunlap <rdunlap@infradead.org>
Date: Sun, 15 Jun 2025 11:36:51 -0700
Subject: fbdev: nvidiafb: add depends on HAS_IOPORT
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

From: Randy Dunlap <rdunlap@infradead.org>

commit ecdd7df997fd992f0ec70b788e3b12258008a2bf upstream.

The nvidiafb driver uses inb()/outb() without depending on HAS_IOPORT,
which leads to build errors since kernel v6.13-rc1:
commit 6f043e757445 ("asm-generic/io.h: Remove I/O port accessors
for HAS_IOPORT=n")

Add the HAS_IOPORT dependency to prevent the build errors.

(Found in ARCH=um allmodconfig builds)

drivers/video/fbdev/nvidia/nv_accel.c: In function ‘NVDmaWait’:
include/asm-generic/io.h:596:15: error: call to ‘_outb’ declared with attribute error: outb() requires CONFIG_HAS_IOPORT
  596 | #define _outb _outb

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Cc: Arnd Bergmann <arnd@kernel.org>
Cc: Niklas Schnelle <schnelle@linux.ibm.com>
Cc: Antonino Daplas <adaplas@gmail.com>
Cc: Helge Deller <deller@gmx.de>
Cc: linux-fbdev@vger.kernel.org
Cc: dri-devel@lists.freedesktop.org
Cc: stable@vger.kernel.org # v6.13+
Signed-off-by: Helge Deller <deller@gmx.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/video/fbdev/Kconfig |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/video/fbdev/Kconfig
+++ b/drivers/video/fbdev/Kconfig
@@ -660,7 +660,7 @@ config FB_ATMEL
 
 config FB_NVIDIA
 	tristate "nVidia Framebuffer Support"
-	depends on FB && PCI
+	depends on FB && PCI && HAS_IOPORT
 	select FB_CFB_FILLRECT
 	select FB_CFB_COPYAREA
 	select FB_CFB_IMAGEBLIT


Patches currently in stable-queue which might be from rdunlap@infradead.org are

queue-6.16/fbdev-nvidiafb-add-depends-on-has_ioport.patch
queue-6.16/parisc-makefile-fix-a-typo-in-palo.conf.patch
queue-6.16/kconfig-gconf-fix-potential-memory-leak-in-renderer_.patch
queue-6.16/kconfig-nconf-ensure-null-termination-where-strncpy-.patch