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The find.h APIs are designed to be used only on unsigned long arguments.
This can technically result in a over-read, but it is harmless in this
case. Regardless, fix it to avoid the warning seen under -Warray-bounds,
which we'd like to enable globally:
In file included from ./include/linux/bitmap.h:9,
from ./include/linux/cpumask.h:12,
from ./include/linux/smp.h:13,
from ./include/linux/lockdep.h:14,
from ./include/linux/mutex.h:17,
from ./include/linux/notifier.h:14,
from ./include/linux/clk.h:14,
from drivers/irqchip/irq-ingenic-tcu.c:7:
drivers/irqchip/irq-ingenic-tcu.c: In function 'ingenic_tcu_intc_cascade':
./include/linux/find.h:40:23: warning: array subscript 'long unsigned int[0]' is partly outside array bounds of 'uint32_t[1]' {aka 'unsigned int[1]'} [-Warray-bounds]
40 | val = *addr & GENMASK(size - 1, offset);
| ^~~~~
drivers/irqchip/irq-ingenic-tcu.c:30:18: note: while referencing 'irq_reg'
30 | uint32_t irq_reg, irq_mask;
| ^~~~~~~
Signed-off-by: Kees Cook <keescook@chromium.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211215232457.2069969-1-keescook@chromium.org
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Wherever possible, replace constructs that match either
generic_handle_irq(irq_find_mapping()) or
generic_handle_irq(irq_linear_revmap()) to a single call to
generic_handle_domain_irq().
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
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Add support for the interrupt controller found in the JZ4760 SoC, which
works exactly like the one in the JZ4770.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20210307172014.73481-2-paul@crapouillou.net
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Enable TCU support for Ingenic X1000, which can be supported by
the existing driver.
Signed-off-by: 周琰杰 (Zhou Yanjie) <zhouyanjie@wanyeetech.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/1584456160-40060-3-git-send-email-zhouyanjie@wanyeetech.com
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This driver handles the interrupt controller built in the Timer/Counter
Unit (TCU) of the JZ47xx SoCs from Ingenic.
Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Tested-by: Mathieu Malaterre <malat@debian.org>
Tested-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Signed-off-by: Paul Burton <paul.burton@mips.com>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: James Hogan <jhogan@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Lee Jones <lee.jones@linaro.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Daniel Lezcano <daniel.lezcano@linaro.org>
Cc: Michael Turquette <mturquette@baylibre.com>
Cc: Stephen Boyd <sboyd@kernel.org>
Cc: Jason Cooper <jason@lakedaemon.net>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: devicetree@vger.kernel.org
Cc: linux-kernel@vger.kernel.org
Cc: linux-doc@vger.kernel.org
Cc: linux-mips@vger.kernel.org
Cc: linux-clk@vger.kernel.org
Cc: od@zcrc.me
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