[MIPS] Fix AP/SP to work in the reality of modern kernels. (7f5a7716) · Commits · e / devices / android_kernel_oneplus_sm7250

arch/mips/kernel/kspd.c

+1 −4

Original line number	Diff line number	Diff line
		@@ -17,6 +17,7 @@
		*/
		#include <linux/kernel.h>
		#include <linux/module.h>
		#include <linux/sched.h>
		#include <linux/unistd.h>
		#include <linux/file.h>
		#include <linux/fs.h>
		@@ -198,7 +199,6 @@ void sp_work_handle_request(void)
		int cmd;

		char *vcwd;
		mm_segment_t old_fs;
		int size;

		ret.retval = -1;
		@@ -241,8 +241,6 @@ void sp_work_handle_request(void)
		if ((ret.retval = sp_syscall(__NR_gettimeofday, (int)&tv,
		(int)&tz, 0,0)) == 0)
		ret.retval = tv.tv_sec;

		ret.errno = errno;
		break;

		case MTSP_SYSCALL_EXIT:
		@@ -279,7 +277,6 @@ void sp_work_handle_request(void)
		if (cmd >= 0) {
		ret.retval = sp_syscall(cmd, generic.arg0, generic.arg1,
		generic.arg2, generic.arg3);
		ret.errno = errno;
		} else
		printk(KERN_WARNING
		"KSPD: Unknown SP syscall number %d\n", sc.cmd);

+4 −3

Original line number	Diff line number	Diff line
		@@ -289,7 +289,7 @@ unsigned int rtlx_write_poll(int index)
		return write_spacefree(chan->rt_read, chan->rt_write, chan->buffer_size);
		}

		ssize_t rtlx_read(int index, void __user *buff, size_t count, int user)
		ssize_t rtlx_read(int index, void __user *buff, size_t count)
		{
		size_t lx_write, fl = 0L;
		struct rtlx_channel *lx;
		@@ -331,9 +331,10 @@ ssize_t rtlx_read(int index, void __user *buff, size_t count, int user)
		return count;
		}

		ssize_t rtlx_write(int index, const void __user *buffer, size_t count, int user)
		ssize_t rtlx_write(int index, const void __user *buffer, size_t count)
		{
		struct rtlx_channel *rt;
		unsigned long failed;
		size_t rt_read;
		size_t fl;

		@@ -363,7 +364,7 @@ ssize_t rtlx_write(int index, const void __user *buffer, size_t count, int user)
		}

		out:
		count -= cailed;
		count -= failed;

		smp_wmb();
		rt->rt_write = (rt->rt_write + count) % rt->buffer_size;