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Groups > linux.kernel > #1216465
| From | Anders Roxell <anders.roxell@linaro.org> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [PATCH] drivers: i2c: exynos5: irq spinlock rt-safe |
| Date | 2015-08-31 23:40 +0200 |
| Message-ID | <q3EY2-36r-11@gated-at.bofh.it> (permalink) |
| References | <q1hCz-P0-39@gated-at.bofh.it> <q1uq6-2tj-17@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On 2015-08-25 23:51, Thomas Gleixner wrote: > On Tue, 25 Aug 2015, Anders Roxell wrote: > > > The exynos5_i2c_message_start enables interrupts while holding the i2c > > lock which is sought by the irq handler. If an IRQ is received before > > this lock is released then a deadlock occurs. > > That's crap. The interrupt handler runs in an irq thread as RT forces > all normal interrupts to that. You are right, I will send a v2 with a better changelog. Cheers, Anders -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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[PATCH] drivers: i2c: exynos5: irq spinlock rt-safe Anders Roxell <anders.roxell@linaro.org> - 2015-08-25 10:20 +0200
Re: [PATCH] drivers: i2c: exynos5: irq spinlock rt-safe Thomas Gleixner <tglx@linutronix.de> - 2015-08-26 00:00 +0200
Re: [PATCH] drivers: i2c: exynos5: irq spinlock rt-safe Anders Roxell <anders.roxell@linaro.org> - 2015-08-31 23:40 +0200
[PATCHv2] drivers: i2c: exynos5: irq spinlock rt-safe Anders Roxell <anders.roxell@linaro.org> - 2015-09-03 23:10 +0200
Re: [PATCHv2] drivers: i2c: exynos5: irq spinlock rt-safe Thomas Gleixner <tglx@linutronix.de> - 2015-09-03 23:40 +0200
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