Messages in this thread Patch in this message |  | | From | Maxime Coquelin <> | Subject | [PATCH] ARM: Re-enable TRACE_IRQFLAGS_SUPPORT on ARMv7-M | Date | Tue, 9 Jun 2015 00:24:48 +0200 |
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Commit cb1293e2f594 ("ARM: 8375/1: disable some options on ARMv7-M") causes build failure on ARMv7-M machines:
CC arch/arm/kernel/asm-offsets.s In file included from include/linux/sem.h:5:0, from include/linux/sched.h:35, from arch/arm/kernel/asm-offsets.c:14: include/linux/rcupdate.h: In function 'rcu_read_lock_sched_held': include/linux/rcupdate.h:539:2: error: implicit declaration of function 'arch_irqs_disabled' [-Werror=implicit-function-declaration] return preempt_count() != 0 || irqs_disabled(); ^ Commit cb1293e2f594 was initially introduced to fix build errors with randconfig, as ARMv7-m selects TRACE_IRQFLAGS_SUPPORT but breaks build when TRACE_IRQFLAGS is selected.
As there is no proper support yet for TRACE_IRQFLAGS, this patch partially reverts commit cb1293e2f594, with the downside of build errors with randconfig when TRACE_IRQFLAGS gets selected.
Cc: Arnd Bergmann <arnd@arndb.de> Cc: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Cc: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Maxime Coquelin <mcoquelin.stm32@gmail.com> --- arch/arm/Kconfig | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index b47457d..e4e1694 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -171,7 +171,7 @@ config LOCKDEP_SUPPORT config TRACE_IRQFLAGS_SUPPORT bool - default !CPU_V7M + default y config RWSEM_XCHGADD_ALGORITHM bool -- 1.9.1
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