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authorTejun Heo <tj@kernel.org>2010-03-24 17:04:11 +0900
committerTejun Heo <tj@kernel.org>2010-03-30 22:02:32 +0900
commit5a0e3ad6af8660be21ca98a971cd00f331318c05 (patch)
tree5bfb7be11a03176a87296a43ac6647975c00a1d1 /drivers/input/misc
parented391f4ebf8f701d3566423ce8f17e614cde9806 (diff)
include cleanup: Update gfp.h and slab.h includes to prepare for breaking implicit slab.h inclusion from percpu.h
percpu.h is included by sched.h and module.h and thus ends up being included when building most .c files. percpu.h includes slab.h which in turn includes gfp.h making everything defined by the two files universally available and complicating inclusion dependencies. percpu.h -> slab.h dependency is about to be removed. Prepare for this change by updating users of gfp and slab facilities include those headers directly instead of assuming availability. As this conversion needs to touch large number of source files, the following script is used as the basis of conversion. http://userweb.kernel.org/~tj/misc/slabh-sweep.py The script does the followings. * Scan files for gfp and slab usages and update includes such that only the necessary includes are there. ie. if only gfp is used, gfp.h, if slab is used, slab.h. * When the script inserts a new include, it looks at the include blocks and try to put the new include such that its order conforms to its surrounding. It's put in the include block which contains core kernel includes, in the same order that the rest are ordered - alphabetical, Christmas tree, rev-Xmas-tree or at the end if there doesn't seem to be any matching order. * If the script can't find a place to put a new include (mostly because the file doesn't have fitting include block), it prints out an error message indicating which .h file needs to be added to the file. The conversion was done in the following steps. 1. The initial automatic conversion of all .c files updated slightly over 4000 files, deleting around 700 includes and adding ~480 gfp.h and ~3000 slab.h inclusions. The script emitted errors for ~400 files. 2. Each error was manually checked. Some didn't need the inclusion, some needed manual addition while adding it to implementation .h or embedding .c file was more appropriate for others. This step added inclusions to around 150 files. 3. The script was run again and the output was compared to the edits from #2 to make sure no file was left behind. 4. Several build tests were done and a couple of problems were fixed. e.g. lib/decompress_*.c used malloc/free() wrappers around slab APIs requiring slab.h to be added manually. 5. The script was run on all .h files but without automatically editing them as sprinkling gfp.h and slab.h inclusions around .h files could easily lead to inclusion dependency hell. Most gfp.h inclusion directives were ignored as stuff from gfp.h was usually wildly available and often used in preprocessor macros. Each slab.h inclusion directive was examined and added manually as necessary. 6. percpu.h was updated not to include slab.h. 7. Build test were done on the following configurations and failures were fixed. CONFIG_GCOV_KERNEL was turned off for all tests (as my distributed build env didn't work with gcov compiles) and a few more options had to be turned off depending on archs to make things build (like ipr on powerpc/64 which failed due to missing writeq). * x86 and x86_64 UP and SMP allmodconfig and a custom test config. * powerpc and powerpc64 SMP allmodconfig * sparc and sparc64 SMP allmodconfig * ia64 SMP allmodconfig * s390 SMP allmodconfig * alpha SMP allmodconfig * um on x86_64 SMP allmodconfig 8. percpu.h modifications were reverted so that it could be applied as a separate patch and serve as bisection point. Given the fact that I had only a couple of failures from tests on step 6, I'm fairly confident about the coverage of this conversion patch. If there is a breakage, it's likely to be something in one of the arch headers which should be easily discoverable easily on most builds of the specific arch. Signed-off-by: Tejun Heo <tj@kernel.org> Guess-its-ok-by: Christoph Lameter <cl@linux-foundation.org> Cc: Ingo Molnar <mingo@redhat.com> Cc: Lee Schermerhorn <Lee.Schermerhorn@hp.com>
Diffstat (limited to 'drivers/input/misc')
-rw-r--r--drivers/input/misc/88pm860x_onkey.c1
-rw-r--r--drivers/input/misc/ati_remote2.c1
-rw-r--r--drivers/input/misc/bfin_rotary.c1
-rw-r--r--drivers/input/misc/cobalt_btns.c1
-rw-r--r--drivers/input/misc/dm355evm_keys.c1
-rw-r--r--drivers/input/misc/pcap_keys.c1
-rw-r--r--drivers/input/misc/pcf50633-input.c1
-rw-r--r--drivers/input/misc/rotary_encoder.c1
-rw-r--r--drivers/input/misc/sgi_btns.c1
-rw-r--r--drivers/input/misc/sparcspkr.c1
-rw-r--r--drivers/input/misc/twl4030-vibra.c1
-rw-r--r--drivers/input/misc/winbond-cir.c1
-rw-r--r--drivers/input/misc/wistron_btns.c1
-rw-r--r--drivers/input/misc/wm831x-on.c1
14 files changed, 14 insertions, 0 deletions
diff --git a/drivers/input/misc/88pm860x_onkey.c b/drivers/input/misc/88pm860x_onkey.c
index 69a48e8701b..40dabd8487b 100644
--- a/drivers/input/misc/88pm860x_onkey.c
+++ b/drivers/input/misc/88pm860x_onkey.c
@@ -25,6 +25,7 @@
#include <linux/input.h>
#include <linux/interrupt.h>
#include <linux/mfd/88pm860x.h>
+#include <linux/slab.h>
#define PM8607_WAKEUP 0x0b
diff --git a/drivers/input/misc/ati_remote2.c b/drivers/input/misc/ati_remote2.c
index 15be5430bc6..2124b99378b 100644
--- a/drivers/input/misc/ati_remote2.c
+++ b/drivers/input/misc/ati_remote2.c
@@ -10,6 +10,7 @@
*/
#include <linux/usb/input.h>
+#include <linux/slab.h>
#define DRIVER_DESC "ATI/Philips USB RF remote driver"
#define DRIVER_VERSION "0.3"
diff --git a/drivers/input/misc/bfin_rotary.c b/drivers/input/misc/bfin_rotary.c
index 61d10177fa8..4f72bdd6941 100644
--- a/drivers/input/misc/bfin_rotary.c
+++ b/drivers/input/misc/bfin_rotary.c
@@ -13,6 +13,7 @@
#include <linux/pm.h>
#include <linux/platform_device.h>
#include <linux/input.h>
+#include <linux/slab.h>
#include <asm/portmux.h>
#include <asm/bfin_rotary.h>
diff --git a/drivers/input/misc/cobalt_btns.c b/drivers/input/misc/cobalt_btns.c
index ee73d7219c9..fd8407a2963 100644
--- a/drivers/input/misc/cobalt_btns.c
+++ b/drivers/input/misc/cobalt_btns.c
@@ -22,6 +22,7 @@
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#define BUTTONS_POLL_INTERVAL 30 /* msec */
#define BUTTONS_COUNT_THRESHOLD 3
diff --git a/drivers/input/misc/dm355evm_keys.c b/drivers/input/misc/dm355evm_keys.c
index 766c06911f4..19af682c24f 100644
--- a/drivers/input/misc/dm355evm_keys.c
+++ b/drivers/input/misc/dm355evm_keys.c
@@ -10,6 +10,7 @@
*/
#include <linux/kernel.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/input.h>
#include <linux/input/sparse-keymap.h>
#include <linux/platform_device.h>
diff --git a/drivers/input/misc/pcap_keys.c b/drivers/input/misc/pcap_keys.c
index 7ea969347ca..99335c28625 100644
--- a/drivers/input/misc/pcap_keys.c
+++ b/drivers/input/misc/pcap_keys.c
@@ -17,6 +17,7 @@
#include <linux/platform_device.h>
#include <linux/input.h>
#include <linux/mfd/ezx-pcap.h>
+#include <linux/slab.h>
struct pcap_keys {
struct pcap_chip *pcap;
diff --git a/drivers/input/misc/pcf50633-input.c b/drivers/input/misc/pcf50633-input.c
index 008de0c5834..95562735728 100644
--- a/drivers/input/misc/pcf50633-input.c
+++ b/drivers/input/misc/pcf50633-input.c
@@ -20,6 +20,7 @@
#include <linux/device.h>
#include <linux/platform_device.h>
#include <linux/input.h>
+#include <linux/slab.h>
#include <linux/mfd/pcf50633/core.h>
diff --git a/drivers/input/misc/rotary_encoder.c b/drivers/input/misc/rotary_encoder.c
index 4ae07935985..1f8e0108962 100644
--- a/drivers/input/misc/rotary_encoder.c
+++ b/drivers/input/misc/rotary_encoder.c
@@ -22,6 +22,7 @@
#include <linux/platform_device.h>
#include <linux/gpio.h>
#include <linux/rotary_encoder.h>
+#include <linux/slab.h>
#define DRV_NAME "rotary-encoder"
diff --git a/drivers/input/misc/sgi_btns.c b/drivers/input/misc/sgi_btns.c
index be3a15f5b25..1a80c0dab83 100644
--- a/drivers/input/misc/sgi_btns.c
+++ b/drivers/input/misc/sgi_btns.c
@@ -22,6 +22,7 @@
#include <linux/ioport.h>
#include <linux/module.h>
#include <linux/platform_device.h>
+#include <linux/slab.h>
#ifdef CONFIG_SGI_IP22
#include <asm/sgi/ioc.h>
diff --git a/drivers/input/misc/sparcspkr.c b/drivers/input/misc/sparcspkr.c
index b064419b90a..0d45422f809 100644
--- a/drivers/input/misc/sparcspkr.c
+++ b/drivers/input/misc/sparcspkr.c
@@ -9,6 +9,7 @@
#include <linux/init.h>
#include <linux/input.h>
#include <linux/of_device.h>
+#include <linux/slab.h>
#include <asm/io.h>
diff --git a/drivers/input/misc/twl4030-vibra.c b/drivers/input/misc/twl4030-vibra.c
index 2fb79e064da..fee9eac8e04 100644
--- a/drivers/input/misc/twl4030-vibra.c
+++ b/drivers/input/misc/twl4030-vibra.c
@@ -30,6 +30,7 @@
#include <linux/i2c/twl.h>
#include <linux/mfd/twl4030-codec.h>
#include <linux/input.h>
+#include <linux/slab.h>
/* MODULE ID2 */
#define LEDEN 0x00
diff --git a/drivers/input/misc/winbond-cir.c b/drivers/input/misc/winbond-cir.c
index 9c155a43abc..64f1de7960c 100644
--- a/drivers/input/misc/winbond-cir.c
+++ b/drivers/input/misc/winbond-cir.c
@@ -56,6 +56,7 @@
#include <linux/io.h>
#include <linux/bitrev.h>
#include <linux/bitops.h>
+#include <linux/slab.h>
#define DRVNAME "winbond-cir"
diff --git a/drivers/input/misc/wistron_btns.c b/drivers/input/misc/wistron_btns.c
index c0afb71a3a6..04d5a4a3181 100644
--- a/drivers/input/misc/wistron_btns.c
+++ b/drivers/input/misc/wistron_btns.c
@@ -29,6 +29,7 @@
#include <linux/module.h>
#include <linux/preempt.h>
#include <linux/string.h>
+#include <linux/slab.h>
#include <linux/types.h>
#include <linux/platform_device.h>
#include <linux/leds.h>
diff --git a/drivers/input/misc/wm831x-on.c b/drivers/input/misc/wm831x-on.c
index 1e54bce72db..c3d7ba5f5b4 100644
--- a/drivers/input/misc/wm831x-on.c
+++ b/drivers/input/misc/wm831x-on.c
@@ -19,6 +19,7 @@
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/slab.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/input.h>