linux-stable.git/arch/powerpc, branch v6.17

Revert "eth: remove the DLink/Sundance (ST201) driver"

2025-09-02T22:49:41+00:00

This reverts commit 8401a108a63302a5a198c7075d857895ca624851.

I got a report from an (anonymous) Sundance user:

  Ethernet controller: Sundance Technology Inc / IC Plus Corp IC Plus IP100A Integrated 10/100 Ethernet MAC + PHY (rev 31)

Revert the driver back in. Make following changes:
 - update Denis's email address in MAINTAINERS
 - adjust to timer API renames:
   - del_timer_sync() -> timer_delete_sync()
   - from_timer() -> timer_container_of()

Fixes: 8401a108a633 ("eth: remove the DLink/Sundance (ST201) driver")
Reviewed-by: Simon Horman 
Link: https://patch.msgid.link/20250901210818.1025316-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski

powerpc/boot/install.sh: Fix shellcheck warnings

2025-08-20T08:35:18+00:00

Fix shellcheck warning such as
"Double quote to prevent globbing and word splitting." and
Use $(...) notation instead of legacy backticks `...`.

Tested-by: Venkat Rao Bagalkote 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250518044107.39928-4-maddy@linux.ibm.com

powerpc/prom_init: Fix shellcheck warnings

2025-08-20T08:35:18+00:00

Fix "Double quote to prevent globbing and word splitting."
warning from shellcheck

Tested-by: Venkat Rao Bagalkote 
Reviewed-by: Stephen Rothwell 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250518044107.39928-3-maddy@linux.ibm.com

powerpc/kvm: Fix ifdef to remove build warning

2025-08-20T08:33:44+00:00

When compiling for pseries or powernv defconfig with "make C=1",
these warning were reported bu sparse tool in powerpc/kernel/kvm.c

arch/powerpc/kernel/kvm.c:635:9: warning: switch with no cases
arch/powerpc/kernel/kvm.c:646:9: warning: switch with no cases

Currently #ifdef were added after the switch case which are specific
for BOOKE and PPC_BOOK3S_32. These are not enabled in pseries/powernv
defconfig. Fix it by moving the #ifdef before switch(){}

Fixes: cbe487fac7fc0 ("KVM: PPC: Add mtsrin PV code")
Tested-by: Venkat Rao Bagalkote 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250518044107.39928-1-maddy@linux.ibm.com

powerpc: unify two CONFIG_POWERPC64_CPU entries in the same choice block

2025-08-20T08:32:47+00:00

There are two CONFIG_POWERPC64_CPU entries in the "CPU selection"
choice block.

I guess the intent is to display a different prompt depending on
CPU_LITTLE_ENDIAN: "Generic (POWER5 and PowerPC 970 and above)" for big
endian, and "Generic (POWER8 and above)" for little endian.

I stumbled on this tricky use case, and worked around it on Kconfig with
commit 4d46b5b623e0 ("kconfig: fix infinite loop in sym_calc_choice()").
However, I doubt that supporting multiple entries with the same symbol
in a choice block is worth the complexity - this is the only such case
in the kernel tree.

This commit merges the two entries. Once this cleanup is accepted in
the powerpc subsystem, I will proceed to refactor the Kconfig parser.

Signed-off-by: Masahiro Yamada 
Reviewed-by: Christophe Leroy 
Acked-by: Michael Ellerman 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250607102005.1965409-1-masahiroy@kernel.org

powerpc: use always-y instead of extra-y in Makefiles

2025-08-20T08:32:13+00:00

The extra-y syntax is planned for deprecation because it is similar
to always-y.

When building the boot wrapper, always-y and extra-y are equivalent.
Use always-y instead.

In arch/powerpc/kernel/Makefile, I added ifdef KBUILD_BUILTIN to
keep the current behavior: prom_init_check is skipped when building
only modular objects.

Signed-off-by: Masahiro Yamada 
Acked-by: Michael Ellerman 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250602163302.478765-1-masahiroy@kernel.org

powerpc/64: Drop unnecessary 'rc' variable

2025-08-20T08:24:05+00:00

Simplify the code to enhance readability and maintain a consistent
coding style.

Signed-off-by: Xichao Zhao 
Acked-by: Gautam Menghani 
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250801035908.370463-1-zhao.xichao@vivo.com

powerpc: Use dev_fwnode()

2025-08-20T08:23:10+00:00

irq_domain_create_simple() takes fwnode as the first argument. It can be
extracted from the struct device using dev_fwnode() helper instead of
using of_node with of_fwnode_handle().

So use the dev_fwnode() helper.

Signed-off-by: Jiri Slaby (SUSE) 
Acked-by: Christophe Leroy 
Link: https://lore.kernel.org/all/4bc0e1ca-a523-424a-8759-59e353317fba@kernel.org/
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250723062842.1831271-1-jirislaby@kernel.org

KVM: PPC: Fix misleading interrupts comment in kvmppc_prepare_to_enter()

2025-08-20T08:21:26+00:00

Until commit 6c85f52b10fd ("kvm/ppc: IRQ disabling cleanup"),
kvmppc_prepare_to_enter() was called with interrupts already disabled by
the caller, which was documented in the comment above the function.

Post-cleanup, the function is now called with interrupts enabled, and
disables interrupts itself.

Fix the comment to reflect the current behaviour.

Fixes: 6c85f52b10fd ("kvm/ppc: IRQ disabling cleanup")
Signed-off-by: Andrew Donnellan 
Reviewed-by: Amit Machhiwal 
Reviewed-by: Gautam Menghani 
Reviewed-by: Shrikanth Hegde 
[Fixed the double colon in Reviewed-by line]
Signed-off-by: Madhavan Srinivasan 
Link: https://patch.msgid.link/20250806055607.17081-1-ajd@linux.ibm.com

treewide: rename GPIO set callbacks back to their original names

2025-08-07T08:07:06+00:00

The conversion of all GPIO drivers to using the .set_rv() and
.set_multiple_rv() callbacks from struct gpio_chip (which - unlike their
predecessors - return an integer and allow the controller drivers to
indicate failures to users) is now complete and the legacy ones have
been removed. Rename the new callbacks back to their original names in
one sweeping change.

Signed-off-by: Bartosz Golaszewski