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From: <Eugen.Hristev@microchip.com>
To: <hverkuil@xs4all.nl>, <linux-media@vger.kernel.org>,
	<linux-arm-kernel@lists.infradead.org>,
	<linux-kernel@vger.kernel.org>, <sakari.ailus@iki.fi>
Cc: <Eugen.Hristev@microchip.com>
Subject: [PATCH] media: atmel: atmel-isc: fix i386 build error
Date: Wed, 19 Jun 2019 07:24:41 +0000	[thread overview]
Message-ID: <1560928828-31471-1-git-send-email-eugen.hristev@microchip.com> (raw)

From: Eugen Hristev <eugen.hristev@microchip.com>

ld: drivers/media/platform/atmel/atmel-isc-base.o:(.bss+0x0): multiple definition of `debug'; arch/x86/entry/entry_32.o:(.entry.text+0x21ac): first defined here

Changed module parameters to static.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
---

Hello Hans,

Sorry for this, it looks like i386 has a stray weird 'debug' symbol which
causes an error.
I changed the module parameters of the atmel-isc to 'static' but now they
cannot be accessed in the other module files.
Will have to create a get function to be used in the other files if needed
later. Any other way to make a symbol static to current module and not
current file ? It would be useful for other config variables as well.
I was not sure if you want to squash this over the faulty patch or add it
as a separate patch.
If you want me to squash it let me know and I will come up with a squashed
new version.

Thanks,
Eugen

 drivers/media/platform/atmel/atmel-isc-base.c | 4 ++--
 drivers/media/platform/atmel/atmel-isc.h      | 4 ----
 2 files changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index eb1f5d4..c1c776b 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -35,11 +35,11 @@
 #include "atmel-isc-regs.h"
 #include "atmel-isc.h"
 
-unsigned int debug;
+static unsigned int debug;
 module_param(debug, int, 0644);
 MODULE_PARM_DESC(debug, "debug level (0-2)");
 
-unsigned int sensor_preferred = 1;
+static unsigned int sensor_preferred = 1;
 module_param(sensor_preferred, uint, 0644);
 MODULE_PARM_DESC(sensor_preferred,
 		 "Sensor is preferred to output the specified format (1-on 0-off), default 1");
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index f5f5932..bfaed2f 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -230,10 +230,6 @@ struct isc_device {
 
 #define ATMEL_ISC_NAME "atmel-isc"
 
-/* module parameters */
-extern unsigned int debug;
-extern unsigned int sensor_preferred;
-
 extern struct isc_format formats_list[];
 extern const struct isc_format controller_formats[];
 extern const u32 isc_gamma_table[GAMMA_MAX + 1][GAMMA_ENTRIES];
-- 
2.7.4


             reply	other threads:[~2019-06-19  7:24 UTC|newest]

Thread overview: 3+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-06-19  7:24 Eugen.Hristev [this message]
2019-06-19  8:03 ` Sakari Ailus
2019-06-22  7:44 ` Hans Verkuil

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