[PATCH v11 5/9] ARM: l2c: Get outer cache .write_sec callback from mach_desc only if not NULL
From: tony@atomide.com (Tony Lindgren)
Date: 2015-01-05 16:29:06
Also in:
linux-omap, linux-samsung-soc, lkml
* Marek Szyprowski [off-list ref] [150105 04:22]:
From: Tomasz Figa <redacted> Certain platforms (i.e. Exynos) might need to set .write_sec callback from firmware initialization which is happenning in .init_early callback of machine descriptor. However current code will overwrite the pointer with whatever is present in machine descriptor, even though it can be already set earlier. This patch fixes this by making the assignment conditional, depending on whether current .write_sec callback is NULL. Signed-off-by: Tomasz Figa <redacted> Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Acked-by: Tony Lindgren <tony@atomide.com>
quoted hunk ↗ jump to hunk
--- arch/arm/kernel/irq.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-)diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c index ad857bada96c..350f188c92d2 100644 --- a/arch/arm/kernel/irq.c +++ b/arch/arm/kernel/irq.c@@ -109,7 +109,8 @@ void __init init_IRQ(void) if (IS_ENABLED(CONFIG_OF) && IS_ENABLED(CONFIG_CACHE_L2X0) && (machine_desc->l2c_aux_mask || machine_desc->l2c_aux_val)) { - outer_cache.write_sec = machine_desc->l2c_write_sec; + if (!outer_cache.write_sec) + outer_cache.write_sec = machine_desc->l2c_write_sec; ret = l2x0_of_init(machine_desc->l2c_aux_val, machine_desc->l2c_aux_mask); if (ret)-- 1.9.2