scst.h, scst_debug.h, scst_pres.h: RHEL 5.3 build fix

git-svn-id: http://svn.code.sf.net/p/scst/svn/trunk@4601 d57e44dd-8a1f-0410-8b47-8ef2f437770f

scst/include/scst.h

@@ -3039,7 +3039,11 @@ static inline bool scst_cmd_atomic(struct scst_cmd *cmd)
 	 */
 	if (unlikely((in_atomic() || in_interrupt() || irqs_disabled()) &&
 		     !res)) {
+#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 28)
+		printk(KERN_ERR "ERROR: atomic context and non-atomic cmd!\n");
+#else
 		pr_err("ERROR: atomic context and non-atomic cmd!\n");
+#endif
 		dump_stack();
 		cmd->atomic = 1;
 		res = 1;

scst/include/scst_debug.h

@@ -39,7 +39,7 @@
  * 311d0761 - Introduction of pr_cont() in <linux/kernel.h>.
  * 968ab183 - Moved pr_info() etc. from <linux/kernel.h> to <linux/printk.h>
  */
-#ifndef pr_info
+#ifndef pr_emerg
 #ifndef pr_fmt
 #define pr_fmt(fmt) fmt
 #endif
@@ -57,6 +57,8 @@
 #define pr_warn pr_warning
 #define pr_notice(fmt, ...) \
         printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#endif
+#ifndef pr_info
 #define pr_info(fmt, ...) \
         printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 #endif

scst/src/scst_pres.h

@@ -20,6 +20,11 @@
 #define SCST_PRES_H_
 
 #include <linux/delay.h>
+#ifdef INSIDE_KERNEL_TREE
+#include <scst/scst_debug.h>
+#else
+#include "scst_debug.h"
+#endif
 
 #define PR_REGISTER				0x00
 #define PR_RESERVE				0x01