From cf3aa9a70ee63bb6d784eda23823a5144cd8c5fd Mon Sep 17 00:00:00 2001
From: leonidk <leonidk@ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86>
Date: Thu, 25 Sep 2008 14:01:31 +0000
Subject: [PATCH] [MLX4] Enable Event Log writing on DISPATCH_LEVEL

The patch replaces a standard buffer conversion function, requiring PASSIVE_LEVEL, by a home-made one, which doesn't.
It prevents reported crash upon fatal error handling.


git-svn-id: svn://openib.tc.cornell.edu/gen1@1619 ad392aa1-c5ef-ae45-8dd8-e69d62a5ef86
---
 trunk/hw/mlx4/kernel/bus/core/l2w_debug.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/trunk/hw/mlx4/kernel/bus/core/l2w_debug.c b/trunk/hw/mlx4/kernel/bus/core/l2w_debug.c
index 60843030..c2dd7a24 100644
--- a/trunk/hw/mlx4/kernel/bus/core/l2w_debug.c
+++ b/trunk/hw/mlx4/kernel/bus/core/l2w_debug.c
@@ -107,6 +107,16 @@ Return Value:
 
 } /* WriteEventLogEntry */
 
+// bsize is to be a strlen(src)
+// dest has to have enough place, i.e at least (2*strlen(src) + 2)
+void __ansi_to_wchar( USHORT *dest, UCHAR *src, int bsize)
+{
+	int i;
+
+	for (i=0; i<bsize; ++i)
+		*dest++ = *src++;
+	*dest = 0;
+}
 
 VOID
 mlx4_err(
@@ -122,13 +132,15 @@ mlx4_err(
 	// print to Debugger
 	va_start(list, format);
 	buf[MAX_BUFFER_SIZE - 1] = '\0';
-	RtlStringCbVPrintfA( (char*)buf, sizeof(buf), format, list);
+	if (RtlStringCbVPrintfA( (char*)buf, sizeof(buf), format, list))
+		return;
 	DbgPrint( (char*)buf );
 	va_end(list);
 
 	// print to Event Log
-	if (!RtlStringCchPrintfW(wbuf, sizeof(wbuf)/sizeof(wbuf[0]), L"%S", buf))
-		WriteEventLogEntryStr( mdev->pdev->p_self_do, (ULONG)EVENT_MLX4_ANY_ERROR, 0, 0, wbuf, 0, 0 ); 
+	// print to Event Log
+	__ansi_to_wchar( wbuf, buf, (int)strlen((void*)buf) );
+	WriteEventLogEntryStr( mdev->pdev->p_self_do, (ULONG)EVENT_MLX4_ANY_ERROR, 0, 0, wbuf, 0, 0 ); 
 }
 
 VOID
-- 
2.46.0