From 5a0e3ad6af8660be21ca98a971cd00f331318c05 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Wed, 24 Mar 2010 17:04:11 +0900 Subject: 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 Guess-its-ok-by: Christoph Lameter Cc: Ingo Molnar Cc: Lee Schermerhorn --- drivers/hid/hid-3m-pct.c | 1 + drivers/hid/hid-a4tech.c | 1 + drivers/hid/hid-apple.c | 1 + drivers/hid/hid-debug.c | 1 + drivers/hid/hid-drff.c | 1 + drivers/hid/hid-gaff.c | 1 + drivers/hid/hid-lg2ff.c | 1 + drivers/hid/hid-magicmouse.c | 1 + drivers/hid/hid-mosart.c | 1 + drivers/hid/hid-ntrig.c | 1 + drivers/hid/hid-pl.c | 1 + drivers/hid/hid-quanta.c | 1 + drivers/hid/hid-sjoy.c | 1 + drivers/hid/hid-sony.c | 1 + drivers/hid/hid-stantum.c | 1 + drivers/hid/hid-tmff.c | 1 + drivers/hid/hid-wacom.c | 1 + drivers/hid/hid-zpff.c | 1 + drivers/hid/hidraw.c | 1 + drivers/hid/usbhid/hid-pidff.c | 1 + drivers/hid/usbhid/hid-quirks.c | 1 + 21 files changed, 21 insertions(+) (limited to 'drivers/hid') diff --git a/drivers/hid/hid-3m-pct.c b/drivers/hid/hid-3m-pct.c index 2370aefc86b2..c31e0be8ccea 100644 --- a/drivers/hid/hid-3m-pct.c +++ b/drivers/hid/hid-3m-pct.c @@ -15,6 +15,7 @@ #include #include #include +#include #include MODULE_AUTHOR("Stephane Chatty "); diff --git a/drivers/hid/hid-a4tech.c b/drivers/hid/hid-a4tech.c index df474c699fb8..3a2b223c1da4 100644 --- a/drivers/hid/hid-a4tech.c +++ b/drivers/hid/hid-a4tech.c @@ -20,6 +20,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-apple.c b/drivers/hid/hid-apple.c index 78286b184ace..bba05d0a8980 100644 --- a/drivers/hid/hid-apple.c +++ b/drivers/hid/hid-apple.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-debug.c b/drivers/hid/hid-debug.c index 0c4e75573186..56f314fbd4f9 100644 --- a/drivers/hid/hid-debug.c +++ b/drivers/hid/hid-debug.c @@ -29,6 +29,7 @@ #include #include #include +#include #include #include diff --git a/drivers/hid/hid-drff.c b/drivers/hid/hid-drff.c index a239d20ad7a5..968b04f9b796 100644 --- a/drivers/hid/hid-drff.c +++ b/drivers/hid/hid-drff.c @@ -28,6 +28,7 @@ */ #include +#include #include #include diff --git a/drivers/hid/hid-gaff.c b/drivers/hid/hid-gaff.c index 8a11ccddaf2e..88dfcf49a5d7 100644 --- a/drivers/hid/hid-gaff.c +++ b/drivers/hid/hid-gaff.c @@ -28,6 +28,7 @@ */ #include +#include #include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-lg2ff.c b/drivers/hid/hid-lg2ff.c index 4e6dc6e26523..d888f1e6794f 100644 --- a/drivers/hid/hid-lg2ff.c +++ b/drivers/hid/hid-lg2ff.c @@ -22,6 +22,7 @@ #include +#include #include #include diff --git a/drivers/hid/hid-magicmouse.c b/drivers/hid/hid-magicmouse.c index c174b64c3810..0d471fc2ab82 100644 --- a/drivers/hid/hid-magicmouse.c +++ b/drivers/hid/hid-magicmouse.c @@ -14,6 +14,7 @@ #include #include #include +#include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-mosart.c b/drivers/hid/hid-mosart.c index c8718168fe42..e91437c18906 100644 --- a/drivers/hid/hid-mosart.c +++ b/drivers/hid/hid-mosart.c @@ -16,6 +16,7 @@ #include #include #include +#include #include #include "usbhid/usbhid.h" diff --git a/drivers/hid/hid-ntrig.c b/drivers/hid/hid-ntrig.c index edcc0c4247bb..9b24fc510712 100644 --- a/drivers/hid/hid-ntrig.c +++ b/drivers/hid/hid-ntrig.c @@ -16,6 +16,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-pl.c b/drivers/hid/hid-pl.c index c6d7dbc935b1..9f41e2bd8483 100644 --- a/drivers/hid/hid-pl.c +++ b/drivers/hid/hid-pl.c @@ -39,6 +39,7 @@ #define debug(format, arg...) pr_debug("hid-plff: " format "\n" , ## arg) #include +#include #include #include diff --git a/drivers/hid/hid-quanta.c b/drivers/hid/hid-quanta.c index 01dd51c4986c..54d3db50605b 100644 --- a/drivers/hid/hid-quanta.c +++ b/drivers/hid/hid-quanta.c @@ -15,6 +15,7 @@ #include #include #include +#include MODULE_AUTHOR("Stephane Chatty "); MODULE_DESCRIPTION("Quanta dual-touch panel"); diff --git a/drivers/hid/hid-sjoy.c b/drivers/hid/hid-sjoy.c index 203c438b016f..e10a7687ebf2 100644 --- a/drivers/hid/hid-sjoy.c +++ b/drivers/hid/hid-sjoy.c @@ -27,6 +27,7 @@ /* #define DEBUG */ #include +#include #include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-sony.c b/drivers/hid/hid-sony.c index 9bf00d77d92b..7502a4b2fa86 100644 --- a/drivers/hid/hid-sony.c +++ b/drivers/hid/hid-sony.c @@ -19,6 +19,7 @@ #include #include #include +#include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-stantum.c b/drivers/hid/hid-stantum.c index 2e592a06654e..90df886c5e04 100644 --- a/drivers/hid/hid-stantum.c +++ b/drivers/hid/hid-stantum.c @@ -15,6 +15,7 @@ #include #include #include +#include MODULE_AUTHOR("Stephane Chatty "); MODULE_DESCRIPTION("Stantum HID multitouch panels"); diff --git a/drivers/hid/hid-tmff.c b/drivers/hid/hid-tmff.c index c32f32c84ac8..15434c814793 100644 --- a/drivers/hid/hid-tmff.c +++ b/drivers/hid/hid-tmff.c @@ -29,6 +29,7 @@ #include #include +#include #include #include "hid-ids.h" diff --git a/drivers/hid/hid-wacom.c b/drivers/hid/hid-wacom.c index 8d3b46f5d149..f7700cf49721 100644 --- a/drivers/hid/hid-wacom.c +++ b/drivers/hid/hid-wacom.c @@ -21,6 +21,7 @@ #include #include #include +#include #include "hid-ids.h" diff --git a/drivers/hid/hid-zpff.c b/drivers/hid/hid-zpff.c index a79f0d78c6be..b7acceabba80 100644 --- a/drivers/hid/hid-zpff.c +++ b/drivers/hid/hid-zpff.c @@ -23,6 +23,7 @@ #include #include +#include #include #include "hid-ids.h" diff --git a/drivers/hid/hidraw.c b/drivers/hid/hidraw.c index d04476700b7b..6eadf1a9b3cc 100644 --- a/drivers/hid/hidraw.c +++ b/drivers/hid/hidraw.c @@ -28,6 +28,7 @@ #include #include #include +#include #include #include #include diff --git a/drivers/hid/usbhid/hid-pidff.c b/drivers/hid/usbhid/hid-pidff.c index e565dbe91d97..ef381d79cfa8 100644 --- a/drivers/hid/usbhid/hid-pidff.c +++ b/drivers/hid/usbhid/hid-pidff.c @@ -25,6 +25,7 @@ #define debug(format, arg...) pr_debug("hid-pidff: " format "\n" , ## arg) #include +#include #include #include diff --git a/drivers/hid/usbhid/hid-quirks.c b/drivers/hid/usbhid/hid-quirks.c index 928943c7ce9a..2cacbe81c4e7 100644 --- a/drivers/hid/usbhid/hid-quirks.c +++ b/drivers/hid/usbhid/hid-quirks.c @@ -16,6 +16,7 @@ */ #include +#include #include "../hid-ids.h" -- cgit v1.2.3