linux-hardening - [PATCH] clocksource/drivers/timer-ti-dm: Select TIMER

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Date:   Sat, 28 Aug 2021 10:57:47 -0700
From:   Kees Cook <keescook@...omium.org>
To:     Tony Lindgren <tony@...mide.com>
Cc:     Kees Cook <keescook@...omium.org>,
        kernel test robot <lkp@...el.com>,
        Daniel Lezcano <daniel.lezcano@...aro.org>,
        Keerthy <j-keerthy@...com>,
        Sebastian Reichel <sebastian.reichel@...labora.co.uk>,
        Ladislav Michl <ladis@...ux-mips.org>,
        Grygorii Strashko <grygorii.strashko@...com>,
        linux-omap@...r.kernel.org, Thomas Gleixner <tglx@...utronix.de>,
        linux-kernel@...r.kernel.org, linux-hardening@...r.kernel.org
Subject: [PATCH] clocksource/drivers/timer-ti-dm: Select TIMER_OF

When building OMAP_DM_TIMER without TIMER_OF, there are orphan sections
due to the use of TIMER_OF_DELCARE() without CONFIG_TIMER_OF. Select
CONFIG_TIMER_OF when enaling OMAP_DM_TIMER:

arm-linux-gnueabi-ld: warning: orphan section `__timer_of_table' from `drivers/clocksource/timer-ti-dm-systimer.o' being placed in section `__timer_of_table'

Reported-by: kernel test robot <lkp@...el.com>
Link: https://lore.kernel.org/lkml/202108282255.tkdt4ani-lkp@intel.com/
Cc: Tony Lindgren <tony@...mide.com>
Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
Cc: Keerthy <j-keerthy@...com>
Cc: Sebastian Reichel <sebastian.reichel@...labora.co.uk>
Cc: Ladislav Michl <ladis@...ux-mips.org>
Cc: Grygorii Strashko <grygorii.strashko@...com>
Cc: linux-omap@...r.kernel.org
Fixes: 52762fbd1c47 ("clocksource/drivers/timer-ti-dm: Add clockevent and clocksource support")
Signed-off-by: Kees Cook <keescook@...omium.org>
---
 drivers/clocksource/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/clocksource/Kconfig b/drivers/clocksource/Kconfig
index 0f5e3983951a..08f8cb944a2a 100644
--- a/drivers/clocksource/Kconfig
+++ b/drivers/clocksource/Kconfig
@@ -24,6 +24,7 @@ config I8253_LOCK
 
 config OMAP_DM_TIMER
 	bool
+	select TIMER_OF
 
 config CLKBLD_I8253
 	def_bool y if CLKSRC_I8253 || CLKEVT_I8253 || I8253_LOCK
-- 
2.30.2