| From | Greg Kroah-Hartman <> | Subject | [PATCH 4.19 06/99] i2c: Remove unnecessary call to irq_find_mapping | Date | Mon, 6 May 2019 16:31:39 +0200 |
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From: Charles Keepax <ckeepax@opensource.cirrus.com>
commit b9bb3fdf4e870fb655064f5c3c81c1fee7fd89ce upstream.
irq_create_mapping calls irq_find_mapping internally and will use the found mapping if one exists, so there is no need to manually call this from i2c_smbus_host_notify_to_irq.
Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com> Reviewed-by: Benjamin Tissoires <benjamin.tissoires@redhat.com> Signed-off-by: Wolfram Sang <wsa@the-dreams.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
--- drivers/i2c/i2c-core-base.c | 5 +---- 1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/i2c/i2c-core-base.c +++ b/drivers/i2c/i2c-core-base.c @@ -306,10 +306,7 @@ static int i2c_smbus_host_notify_to_irq( if (client->flags & I2C_CLIENT_TEN) return -EINVAL; - irq = irq_find_mapping(adap->host_notify_domain, client->addr); - if (!irq) - irq = irq_create_mapping(adap->host_notify_domain, - client->addr); + irq = irq_create_mapping(adap->host_notify_domain, client->addr); return irq > 0 ? irq : -ENXIO; }
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