From f9b4963d4d670dcb912cc3ee749dc3addc6eb0b3 Mon Sep 17 00:00:00 2001
From: xizx <xizx@motorola.com>
Date: Sun, 9 May 2021 13:55:04 +0800
Subject: [PATCH] mmi_annotate: support build in kernel-5.10

build error:
make[2]: Entering directory '/home/xizx/work/moto/8450/pine_20210507_08_userdebug/out/msm-waipio-waipio-gki/common'
  CC [M]  /home/xizx/work/moto/8450/pine_20210507_08_userdebug/motorola/kernel/modules/drivers/mmi_annotate/mmi_annotate.o
/home/xizx/work/moto/8450/pine_20210507_08_userdebug/motorola/kernel/modules/drivers/mmi_annotate/mmi_annotate.c:229:15: error: incompatible pointer types passing 'const struct file_operations *' to parameter of type 'const struct proc_ops *' [-Werror,-Wincompatible-pointer-types]
                0444, NULL, &mmi_annotate_operations);
                            ^~~~~~~~~~~~~~~~~~~~~~~~
/home/xizx/work/moto/8450/pine_20210507_08_userdebug/kernel_platform/common/include/linux/proc_fs.h:109:122: note: passing argument to parameter 'proc_ops' here
struct proc_dir_entry *proc_create(const char *name, umode_t mode, struct proc_dir_entry *parent, const struct proc_ops *proc_ops);
                                                                                                                         ^
1 error generated.

Change-Id: I6bc25e9e74cae7582862b83b29796538271e9406
Reviewed-on: https://gerrit.mot.com/1949924
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Xianshan Wang <wangxs8@motorola.com>
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
---
 drivers/mmi_annotate/Makefile       | 14 +++++++++-----
 drivers/mmi_annotate/mmi_annotate.c | 14 +++++++++++++-
 2 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/drivers/mmi_annotate/Makefile b/drivers/mmi_annotate/Makefile
index 34b09dd815a7..bfbdc14740ef 100644
--- a/drivers/mmi_annotate/Makefile
+++ b/drivers/mmi_annotate/Makefile
@@ -1,10 +1,14 @@
-KERNEL_SRC ?= /lib/modules/$(shell uname -r)/build
+all: modules
 
-all:
-	$(MAKE) -C $(KERNEL_SRC) M=$(shell pwd) modules $(KBUILD_OPTIONS)
+modules:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) modules $(KBUILD_OPTIONS)
 
 modules_install:
-	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(shell pwd) modules_install
+	$(MAKE) INSTALL_MOD_STRIP=1 -C $(KERNEL_SRC) M=$(M) modules_install
+
+%:
+	$(MAKE) -C $(KERNEL_SRC) M=$(M) $@ $(KBUILD_OPTIONS)
 
 clean:
-	$(MAKE) -C $(KERNEL_SRC) M=$(PWD) clean
\ No newline at end of file
+	rm -f *.o *.ko *.mod.c *.mod.o *~ .*.cmd Module.symvers
+	rm -rf .tmp_versions
diff --git a/drivers/mmi_annotate/mmi_annotate.c b/drivers/mmi_annotate/mmi_annotate.c
index 9de3eb0ec459..dbc5589135a7 100644
--- a/drivers/mmi_annotate/mmi_annotate.c
+++ b/drivers/mmi_annotate/mmi_annotate.c
@@ -23,12 +23,14 @@
 #include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/ctype.h>
+#include <linux/version.h>
+#if KERNEL_VERSION(5, 10, 0) > LINUX_VERSION_CODE
 #include <linux/dma-contiguous.h>
+#endif
 #include <linux/dma-mapping.h>
 #include <linux/mmi_annotate.h>
 #include <linux/seq_file.h>
 #include <linux/fs.h>
-#include <linux/version.h>
 
 #define MAX_USER_STR 1024
 #define DEFAULT_MEM_SIZE 4096
@@ -92,6 +94,15 @@ static ssize_t mmi_annotate_write(struct file *file, const char __user *buf,
 	return count;
 }
 
+#if KERNEL_VERSION(5, 10, 0) <= LINUX_VERSION_CODE
+static const struct proc_ops mmi_annotate_operations = {
+	.proc_open		= mmi_annotate_open,
+	.proc_read		= seq_read,
+	.proc_write		= mmi_annotate_write,
+	.proc_lseek		= seq_lseek,
+	.proc_release	= single_release,
+};
+#else
 static const struct file_operations mmi_annotate_operations = {
 	.open		= mmi_annotate_open,
 	.read		= seq_read,
@@ -99,6 +110,7 @@ static const struct file_operations mmi_annotate_operations = {
 	.llseek		= seq_lseek,
 	.release	= single_release,
 };
+#endif
 
 #if LINUX_VERSION_CODE >= KERNEL_VERSION(5,4,0)
 static void* mmi_annotate_ram_vmap(phys_addr_t start, size_t size)