3rd-party/linux-kernel-module-cheat
1
0
Fork 0
mirror of https://github.com/cirosantilli/linux-kernel-module-cheat.git synced 2026-01-23 10:15:57 +01:00
Code Issues Releases Wiki Activity

fix kernel_modules build on default v5.9.2

Browse Source
This commit is contained in:
Ciro Santilli
2025-05-09 16:10:59 +01:00
parent 1e28f2eddf
commit 76c4cb0e45
2 changed files with 21 additions and 6 deletions
Download Patch File Download Diff File Expand all files Collapse all files

17
kernel_modules/scull.c
View File

@@ -20,15 +20,11 @@
*/
#define INCLUDE_VERMAGIC
#include <asm/atomic.h>
#include <asm/uaccess.h>
#include <linux/build-salt.h>
#include <linux/cdev.h>
#include <linux/compiler.h>
#include <linux/cred.h> /* current_uid(), current_euid() */
#include <linux/elfnote-lto.h>
#include <linux/errno.h> /* error codes */
#include <linux/export-internal.h>
#include <linux/fcntl.h>
#include <linux/fs.h>
#include <linux/init.h>
@@ -48,6 +44,15 @@
#include <linux/uaccess.h> /* copy_*_user */
#include <linux/vermagic.h>
#include <linux/version.h>
/* As a Linux kernel bug tested on Linux v5.9.2 these includes must come after some other includes
* otherwise the build fails with: error: unknown type name ‘mm_segment_t’;
* Their origin from LDD3 give a clue as to what may need to come before:
* https://github.com/martinezjavier/ldd3/blob/d0c90d4d872b8591563d5a4ba7b3f522c5072551/scull/pipe.c#L29
* https://github.com/martinezjavier/ldd3/blob/d0c90d4d872b8591563d5a4ba7b3f522c5072551/scull/access.c#L29
* This bug had been fixed somewhere by linux v6.8.12.
*/
#include <asm/uaccess.h>
#include <linux/atomic.h>
/* Liner kernel version dependant stuff. */
@@ -265,7 +270,7 @@ static int scull_s_open(struct inode *inode, struct file *filp)
{
struct scull_dev *dev = &scull_s_device; /* device information */
if (! atomic_dec_and_test (&scull_s_available)) {
if (!atomic_dec_and_test(&scull_s_available)) {
atomic_inc(&scull_s_available);
return -EBUSY; /* already open */
}
@@ -1610,8 +1615,8 @@ void scull_p_cleanup(void)
}
BUILD_SALT;
BUILD_LTO_INFO;
MODULE_INFO(vermagic, VERMAGIC_STRING);
MODULE_INFO(name, KBUILD_MODNAME);
MODULE_AUTHOR("Alessandro Rubini, Jonathan Corbet");
MODULE_LICENSE("Dual BSD/GPL");