Patchwork [3.11,165/272,media] af9015: Don't use dynamic static allocation

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Submitter Luis Henriques
Date Dec. 6, 2013, 12:57 p.m.
Message ID <>
Download mbox | patch
Permalink /patch/297944/
State New
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Luis Henriques - Dec. 6, 2013, 12:57 p.m. -stable review patch.  If anyone has any objections, please let me know.


From: Mauro Carvalho Chehab <>

commit 65e2f1cb3fe0f0630834b9517ba8f631936f325c upstream.

Dynamic static allocation is evil, as Kernel stack is too low, and
compilation complains about it on some archs:
	drivers/media/usb/dvb-usb-v2/af9015.c:433:1: warning: 'af9015_eeprom_hash' uses dynamic stack allocation [enabled by default]
In this specific case, it is a gcc bug, as the size is a const, but
it is easy to just change it from const to a #define, getting rid of
the gcc warning.

Signed-off-by: Mauro Carvalho Chehab <>
Reviewed-by: Hans Verkuil <>
Reviewed-by: Antti Palosaari <>
Signed-off-by: Mauro Carvalho Chehab <>
Signed-off-by: Luis Henriques <>
 drivers/media/usb/dvb-usb-v2/af9015.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)


diff --git a/drivers/media/usb/dvb-usb-v2/af9015.c b/drivers/media/usb/dvb-usb-v2/af9015.c
index d556042..da47d23 100644
--- a/drivers/media/usb/dvb-usb-v2/af9015.c
+++ b/drivers/media/usb/dvb-usb-v2/af9015.c
@@ -397,12 +397,13 @@  error:
 	return ret;
+#define AF9015_EEPROM_SIZE 256
 /* hash (and dump) eeprom */
 static int af9015_eeprom_hash(struct dvb_usb_device *d)
 	struct af9015_state *state = d_to_priv(d);
 	int ret, i;
-	static const unsigned int AF9015_EEPROM_SIZE = 256;
 	u8 buf[AF9015_EEPROM_SIZE];
 	struct req_t req = {READ_I2C, AF9015_I2C_EEPROM, 0, 0, 1, 1, NULL};