* [PATCH] i2c: make busses/i2c-pxa-pci.c explicitly non-modular
@ 2016-10-31 17:59 ` Paul Gortmaker
0 siblings, 0 replies; 5+ messages in thread
From: Paul Gortmaker @ 2016-10-31 17:59 UTC (permalink / raw)
To: linux-kernel
Cc: Paul Gortmaker, Wolfram Sang, Sebastian Andrzej Siewior, linux-i2c
The Kconfig currently controlling compilation of this code is:
drivers/i2c/busses/Kconfig:config I2C_PXA_PCI
drivers/i2c/busses/Kconfig: def_bool I2C_PXA && X86_32 && PCI && OF
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since module_pci_driver() uses the same init level priority as
builtin_pci_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-i2c@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
drivers/i2c/busses/i2c-pxa-pci.c | 32 +++++++++-----------------------
1 file changed, 9 insertions(+), 23 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa-pci.c b/drivers/i2c/busses/i2c-pxa-pci.c
index 417464e9ea2a..004deb96afe3 100644
--- a/drivers/i2c/busses/i2c-pxa-pci.c
+++ b/drivers/i2c/busses/i2c-pxa-pci.c
@@ -1,9 +1,13 @@
/*
+ * CE4100 PCI-I2C glue code for PXA's driver
+ * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ * License: GPL v2
+ *
* The CE4100's I2C device is more or less the same one as found on PXA.
* It does not support slave mode, the register slightly moved. This PCI
* device provides three bars, every contains a single I2C controller.
*/
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/i2c/pxa-i2c.h>
@@ -134,35 +138,17 @@ err_mem:
return ret;
}
-static void ce4100_i2c_remove(struct pci_dev *dev)
-{
- struct ce4100_devices *sds;
- unsigned int i;
-
- sds = pci_get_drvdata(dev);
-
- for (i = 0; i < ARRAY_SIZE(sds->pdev); i++)
- platform_device_unregister(sds->pdev[i]);
-
- pci_disable_device(dev);
- kfree(sds);
-}
-
static const struct pci_device_id ce4100_i2c_devices[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e68)},
{ },
};
-MODULE_DEVICE_TABLE(pci, ce4100_i2c_devices);
static struct pci_driver ce4100_i2c_driver = {
+ .driver = {
+ .suppress_bind_attrs = true,
+ },
.name = "ce4100_i2c",
.id_table = ce4100_i2c_devices,
.probe = ce4100_i2c_probe,
- .remove = ce4100_i2c_remove,
};
-
-module_pci_driver(ce4100_i2c_driver);
-
-MODULE_DESCRIPTION("CE4100 PCI-I2C glue code for PXA's driver");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
+builtin_pci_driver(ce4100_i2c_driver);
--
2.6.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* [PATCH] i2c: make busses/i2c-pxa-pci.c explicitly non-modular
@ 2016-10-31 17:59 ` Paul Gortmaker
0 siblings, 0 replies; 5+ messages in thread
From: Paul Gortmaker @ 2016-10-31 17:59 UTC (permalink / raw)
To: linux-kernel
Cc: Paul Gortmaker, Wolfram Sang, Sebastian Andrzej Siewior, linux-i2c
The Kconfig currently controlling compilation of this code is:
drivers/i2c/busses/Kconfig:config I2C_PXA_PCI
drivers/i2c/busses/Kconfig: def_bool I2C_PXA && X86_32 && PCI && OF
...meaning that it currently is not being built as a module by anyone.
Lets remove the modular code that is essentially orphaned, so that
when reading the driver there is no doubt it is builtin-only.
We explicitly disallow a driver unbind, since that doesn't have a
sensible use case anyway, and it allows us to drop the ".remove"
code for non-modular drivers.
Since module_pci_driver() uses the same init level priority as
builtin_pci_driver() the init ordering remains unchanged with
this commit.
Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
We also delete the MODULE_LICENSE tag etc. since all that information
was (or is now) contained at the top of the file in the comments.
Cc: Wolfram Sang <wsa@the-dreams.de>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: linux-i2c@vger.kernel.org
Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
---
drivers/i2c/busses/i2c-pxa-pci.c | 32 +++++++++-----------------------
1 file changed, 9 insertions(+), 23 deletions(-)
diff --git a/drivers/i2c/busses/i2c-pxa-pci.c b/drivers/i2c/busses/i2c-pxa-pci.c
index 417464e9ea2a..004deb96afe3 100644
--- a/drivers/i2c/busses/i2c-pxa-pci.c
+++ b/drivers/i2c/busses/i2c-pxa-pci.c
@@ -1,9 +1,13 @@
/*
+ * CE4100 PCI-I2C glue code for PXA's driver
+ * Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
+ * License: GPL v2
+ *
* The CE4100's I2C device is more or less the same one as found on PXA.
* It does not support slave mode, the register slightly moved. This PCI
* device provides three bars, every contains a single I2C controller.
*/
-#include <linux/module.h>
+#include <linux/init.h>
#include <linux/pci.h>
#include <linux/platform_device.h>
#include <linux/i2c/pxa-i2c.h>
@@ -134,35 +138,17 @@ err_mem:
return ret;
}
-static void ce4100_i2c_remove(struct pci_dev *dev)
-{
- struct ce4100_devices *sds;
- unsigned int i;
-
- sds = pci_get_drvdata(dev);
-
- for (i = 0; i < ARRAY_SIZE(sds->pdev); i++)
- platform_device_unregister(sds->pdev[i]);
-
- pci_disable_device(dev);
- kfree(sds);
-}
-
static const struct pci_device_id ce4100_i2c_devices[] = {
{ PCI_DEVICE(PCI_VENDOR_ID_INTEL, 0x2e68)},
{ },
};
-MODULE_DEVICE_TABLE(pci, ce4100_i2c_devices);
static struct pci_driver ce4100_i2c_driver = {
+ .driver = {
+ .suppress_bind_attrs = true,
+ },
.name = "ce4100_i2c",
.id_table = ce4100_i2c_devices,
.probe = ce4100_i2c_probe,
- .remove = ce4100_i2c_remove,
};
-
-module_pci_driver(ce4100_i2c_driver);
-
-MODULE_DESCRIPTION("CE4100 PCI-I2C glue code for PXA's driver");
-MODULE_LICENSE("GPL v2");
-MODULE_AUTHOR("Sebastian Andrzej Siewior <bigeasy@linutronix.de>");
+builtin_pci_driver(ce4100_i2c_driver);
--
2.6.1
^ permalink raw reply related [flat|nested] 5+ messages in thread
* Re: [PATCH] i2c: make busses/i2c-pxa-pci.c explicitly non-modular
2016-10-31 17:59 ` Paul Gortmaker
(?)
@ 2016-11-04 19:47 ` Wolfram Sang
2016-11-04 20:14 ` Sebastian Andrzej Siewior
-1 siblings, 1 reply; 5+ messages in thread
From: Wolfram Sang @ 2016-11-04 19:47 UTC (permalink / raw)
To: Paul Gortmaker; +Cc: linux-kernel, Sebastian Andrzej Siewior, linux-i2c
[-- Attachment #1: Type: text/plain, Size: 1294 bytes --]
On Mon, Oct 31, 2016 at 01:59:47PM -0400, Paul Gortmaker wrote:
> The Kconfig currently controlling compilation of this code is:
>
> drivers/i2c/busses/Kconfig:config I2C_PXA_PCI
> drivers/i2c/busses/Kconfig: def_bool I2C_PXA && X86_32 && PCI && OF
>
> ...meaning that it currently is not being built as a module by anyone.
>
> Lets remove the modular code that is essentially orphaned, so that
> when reading the driver there is no doubt it is builtin-only.
>
> We explicitly disallow a driver unbind, since that doesn't have a
> sensible use case anyway, and it allows us to drop the ".remove"
> code for non-modular drivers.
>
> Since module_pci_driver() uses the same init level priority as
> builtin_pci_driver() the init ordering remains unchanged with
> this commit.
>
> Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
>
> We also delete the MODULE_LICENSE tag etc. since all that information
> was (or is now) contained at the top of the file in the comments.
>
> Cc: Wolfram Sang <wsa@the-dreams.de>
> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Cc: linux-i2c@vger.kernel.org
> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
Looks OK to me, still I'd like an ack from Sebastian for this patch.
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^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: [PATCH] i2c: make busses/i2c-pxa-pci.c explicitly non-modular
2016-11-04 19:47 ` Wolfram Sang
@ 2016-11-04 20:14 ` Sebastian Andrzej Siewior
0 siblings, 0 replies; 5+ messages in thread
From: Sebastian Andrzej Siewior @ 2016-11-04 20:14 UTC (permalink / raw)
To: Wolfram Sang; +Cc: Paul Gortmaker, linux-kernel, linux-i2c
On 2016-11-04 20:47:49 [+0100], Wolfram Sang wrote:
> Looks OK to me, still I'd like an ack from Sebastian for this patch.
>
Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Sebastian
^ permalink raw reply [flat|nested] 5+ messages in thread
* Re: i2c: make busses/i2c-pxa-pci.c explicitly non-modular
2016-10-31 17:59 ` Paul Gortmaker
(?)
(?)
@ 2016-11-18 0:45 ` Wolfram Sang
-1 siblings, 0 replies; 5+ messages in thread
From: Wolfram Sang @ 2016-11-18 0:45 UTC (permalink / raw)
To: Paul Gortmaker
Cc: linux-kernel, Wolfram Sang, Sebastian Andrzej Siewior, linux-i2c
[-- Attachment #1: Type: text/plain, Size: 1317 bytes --]
On Mon, Oct 31, 2016 at 01:59:47PM -0400, Paul Gortmaker wrote:
> The Kconfig currently controlling compilation of this code is:
>
> drivers/i2c/busses/Kconfig:config I2C_PXA_PCI
> drivers/i2c/busses/Kconfig: def_bool I2C_PXA && X86_32 && PCI && OF
>
> ...meaning that it currently is not being built as a module by anyone.
>
> Lets remove the modular code that is essentially orphaned, so that
> when reading the driver there is no doubt it is builtin-only.
>
> We explicitly disallow a driver unbind, since that doesn't have a
> sensible use case anyway, and it allows us to drop the ".remove"
> code for non-modular drivers.
>
> Since module_pci_driver() uses the same init level priority as
> builtin_pci_driver() the init ordering remains unchanged with
> this commit.
>
> Also note that MODULE_DEVICE_TABLE is a no-op for non-modular code.
>
> We also delete the MODULE_LICENSE tag etc. since all that information
> was (or is now) contained at the top of the file in the comments.
>
> Cc: Wolfram Sang <wsa@the-dreams.de>
> Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
> Cc: linux-i2c@vger.kernel.org
> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
> Acked-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Applied to for-next, thanks!
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^ permalink raw reply [flat|nested] 5+ messages in thread
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2016-10-31 17:59 [PATCH] i2c: make busses/i2c-pxa-pci.c explicitly non-modular Paul Gortmaker
2016-10-31 17:59 ` Paul Gortmaker
2016-11-04 19:47 ` Wolfram Sang
2016-11-04 20:14 ` Sebastian Andrzej Siewior
2016-11-18 0:45 ` Wolfram Sang
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