CHECK: Lines should not end with a '('
#107: FILE: arch/x86/kernel/uprobes.c:313:
+asm (

WARNING: externs should be avoided in .c files
#131: FILE: arch/x86/kernel/uprobes.c:337:
+extern u8 uretprobe_syscall_entry[];

WARNING: externs should be avoided in .c files
#132: FILE: arch/x86/kernel/uprobes.c:338:
+extern u8 uretprobe_syscall_check[];

WARNING: externs should be avoided in .c files
#133: FILE: arch/x86/kernel/uprobes.c:339:
+extern u8 uretprobe_syscall_end[];

WARNING: line length of 84 exceeds 80 columns
#169: FILE: arch/x86/kernel/uprobes.c:375:
+	err = copy_from_user(r11_cx_ax, (void __user *)regs->sp, sizeof(r11_cx_ax));

WARNING: line length of 82 exceeds 80 columns
#205: FILE: arch/x86/kernel/uprobes.c:411:
+	err = copy_to_user((void __user *)regs->sp, r11_cx_ax, sizeof(r11_cx_ax));

CHECK: extern prototypes should be avoided in .h files
#231: FILE: include/linux/uprobes.h:141:
+extern void uprobe_handle_trampoline(struct pt_regs *regs);

CHECK: extern prototypes should be avoided in .h files
#232: FILE: include/linux/uprobes.h:142:
+extern void *arch_uprobe_trampoline(unsigned long *psize);

CHECK: extern prototypes should be avoided in .h files
#233: FILE: include/linux/uprobes.h:143:
+extern unsigned long uprobe_get_trampoline_vaddr(void);

total: 0 errors, 5 warnings, 4 checks, 200 lines checked

NOTE: For some of the reported defects, checkpatch may be able to
      mechanically convert to the typical style using --fix or --fix-inplace.

Commit fb072586d84e ("uprobe: Add uretprobe syscall to speed up return probe") has style problems, please review.

NOTE: Ignored message types: ALLOC_SIZEOF_STRUCT BAD_REPORTED_BY_LINK CAMELCASE COMMIT_LOG_LONG_LINE GIT_COMMIT_ID MACRO_ARG_REUSE NO_AUTHOR_SIGN_OFF

NOTE: If any of the errors are false positives, please report
      them to the maintainer, see CHECKPATCH in MAINTAINERS.
total: 0 errors, 5 warnings, 4 checks, 200 lines checked