change wifi driver to cypress

hc

2024-01-05 071106ecf68c401173c58808b1cf5f68cc50d390

 kernel/arch/mips/include/asm/syscall.h
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@@ -38,7 +38,7 @@
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 static inline long syscall_get_nr(struct task_struct *task,
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 				  struct pt_regs *regs)
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 {
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-	return current_thread_info()->syscall;
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+	return task_thread_info(task)->syscall;
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 }
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 static inline void mips_syscall_update_nr(struct task_struct *task,
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@@ -54,7 +54,7 @@
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 		task_thread_info(task)->syscall = regs->regs[2];
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 }
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-static inline unsigned long mips_get_syscall_arg(unsigned long *arg,
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+static inline void mips_get_syscall_arg(unsigned long *arg,
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 	struct task_struct *task, struct pt_regs *regs, unsigned int n)
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 {
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 	unsigned long usp __maybe_unused = regs->regs[29];
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@@ -63,23 +63,24 @@
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 	case 0: case 1: case 2: case 3:
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 		*arg = regs->regs[4 + n];
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-		return 0;
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+		return;
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 #ifdef CONFIG_32BIT
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 	case 4: case 5: case 6: case 7:
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-		return get_user(*arg, (int *)usp + n);
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+		get_user(*arg, (int *)usp + n);
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+		return;
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 #endif
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 #ifdef CONFIG_64BIT
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 	case 4: case 5: case 6: case 7:
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 #ifdef CONFIG_MIPS32_O32
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 		if (test_tsk_thread_flag(task, TIF_32BIT_REGS))
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-			return get_user(*arg, (int *)usp + n);
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+			get_user(*arg, (int *)usp + n);
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 		else
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 #endif
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 			*arg = regs->regs[4 + n];
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-		return 0;
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+		return;
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 #endif
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 	default:
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@@ -87,6 +88,12 @@
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 	}
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 	unreachable();
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+}
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+
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+static inline long syscall_get_error(struct task_struct *task,
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+				     struct pt_regs *regs)
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+{
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+	return regs->regs[7] ? -regs->regs[2] : 0;
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 }
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 static inline long syscall_get_return_value(struct task_struct *task,
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@@ -116,38 +123,31 @@
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 static inline void syscall_get_arguments(struct task_struct *task,
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 					 struct pt_regs *regs,
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-					 unsigned int i, unsigned int n,
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 					 unsigned long *args)
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 {
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-	int ret;
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+	unsigned int i = 0;
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+	unsigned int n = 6;
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 	/* O32 ABI syscall() */
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 	if (mips_syscall_is_indirect(task, regs))
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 		i++;
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 	while (n--)
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-		ret |= mips_get_syscall_arg(args++, task, regs, i++);
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-
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-	/*
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-	 * No way to communicate an error because this is a void function.
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-	 */
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-#if 0
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-	return ret;
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-#endif
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+		mips_get_syscall_arg(args++, task, regs, i++);
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 }
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 extern const unsigned long sys_call_table[];
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 extern const unsigned long sys32_call_table[];
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 extern const unsigned long sysn32_call_table[];
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-static inline int syscall_get_arch(void)
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+static inline int syscall_get_arch(struct task_struct *task)
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 {
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 	int arch = AUDIT_ARCH_MIPS;
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 #ifdef CONFIG_64BIT
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-	if (!test_thread_flag(TIF_32BIT_REGS)) {
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+	if (!test_tsk_thread_flag(task, TIF_32BIT_REGS)) {
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 		arch |= __AUDIT_ARCH_64BIT;
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 		/* N32 sets only TIF_32BIT_ADDR */
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-		if (test_thread_flag(TIF_32BIT_ADDR))
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+		if (test_tsk_thread_flag(task, TIF_32BIT_ADDR))
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 			arch |= __AUDIT_ARCH_CONVENTION_MIPS64_N32;
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 	}
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 #endif