01 init/目录下Kconfig修改：
956行添加：
config PANIC_TIMEOUT
int "Default panic timeout"
default
help
Set default panic timeout.
02 drivers目录下Kconfig：
添加：
source "drivers/rongpin/Kconfig" source "drivers/switch/Kconfig" source "drivers/nfc/Kconfig" source "drivers/gud/Kconfig"
03 drivers目录下Makefile：
添加：
obj-$(CONFIG_SWITCH) += switch/
obj-$(CONFIG_MOBICORE_DRIVER) += gud/
obj-$(CONFIG_RPDZKJ_SYSFS) += rongpin/
04 drivers目录下：
将switch，gud，rongpin三个目录拷贝进来（对应原目录）
05
---------------------------------
法二：
（对比法）
荣品的内核源码和从官方下载的内核源码不一样的有如下文件：
一 ：arch
01◐arch主目录下：
①除arm、config其他全部删除
②修改config文件，在最后一行：source "kernel/gcov/Kconfig"
添加：
config HAVE_ARCH_SECCOMP_FILTER
bool
help
An arch should select this symbol if it provides all of these things:
- syscall_get_arch()
- syscall_get_arguments()
- syscall_rollback()
- syscall_set_return_value()
- SIGSYS siginfo_t support
- secure_computing is called from a ptrace_event()-safe context
- secure_computing return value is checked and a return value of -
results in the system call being skipped immediately. config SECCOMP_FILTER
def_bool y
depends on HAVE_ARCH_SECCOMP_FILTER && SECCOMP && NET
help
Enable tasks to build secure computing environments defined
in terms of Berkeley Packet Filter programs which implement
task-defined system call filtering polices. See Documentation/prctl/seccomp_filter.txt for details. source "kernel/gcov/Kconfig"
02◐在arch/arm/configs下添加：
①exynos5_defconfig
②
二：block
1 blk-core.c文件：
①32行添加：
#include <linux/ratelimit.h> //add by phone at 20151117
②2122行：
switch (error) {
case -ENOLINK:
error_type = "recoverable transport";
break;
case -EREMOTEIO:
error_type = "critical target";
break;
case -EBADE:
error_type = "critical nexus";
break;
case -EIO:
default:
error_type = "I/O";
break;
}
printk(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
error_type, req->rq_disk ? req->rq_disk->disk_name : "?",
(unsigned long long)blk_rq_pos(req));
}
换成：
switch (error) {
case -ENOLINK:
error_type = "recoverable transport";
break;
case -EREMOTEIO:
error_type = "critical target";
break;
case -EBADE:
error_type = "critical nexus";
break;
case -ETIMEDOUT:
error_type = "timeout";
break;
case -ENOSPC:
error_type = "critical space allocation";
break;
case -ENODATA:
error_type = "critical medium";
break;
case -EIO:
default:
error_type = "I/O";
break;
}
printk_ratelimited(KERN_ERR "end_request: %s error, dev %s, sector %llu\n",
error_type, req->rq_disk ?
req->rq_disk->disk_name : "?",
(unsigned long long)blk_rq_pos(req));
}
2 partition-genneric.c文件下：
①219行,添加：
static int part_uevent(struct device *dev, struct kobj_uevent_env *env)
{
struct hd_struct *part = dev_to_part(dev); add_uevent_var(env, "PARTN=%u", part->partno);
if (part->info && part->info->volname[])
add_uevent_var(env, "PARTNAME=%s", part->info->volname);
return ;
}
②233行添加：
.uevent = part_uevent,
三：drivers
1 Makefile：
103行添加：
obj-$(CONFIG_SWITCH) += switch/
139行（最后添加）：
obj-$(CONFIG_MOBICORE_DRIVER) += gud/
obj-$(CONFIG_RPDZKJ_SYSFS) += rongpin/
2 Kconfig：
第3行添加：
source "drivers/rongpin/Kconfig" //add by phone at 20151117
第100行添加：
source "drivers/switch/Kconfig" //add by phone at 20151117
第146行添加：
source "drivers/nfc/Kconfig" source "drivers/gud/Kconfig"
3 将
四：include
五：kernel
六：lib
七：mm
八：net
九：security
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