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Commit 11af97e1 authored by Hendrik Brueckner's avatar Hendrik Brueckner Committed by Martin Schwidefsky
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[S390] kernel: Print an error message if kernel NSS cannot be defined 



If a named saved system (NSS) cannot be defined or saved, print out an
error message with the return code of the underlying z/VM CP command.

Signed-off-by: default avatarHendrik Brueckner <brueckner@linux.vnet.ibm.com>
Signed-off-by: default avatarMartin Schwidefsky <schwidefsky@de.ibm.com>
parent edc44fa0

arch/s390/kernel/early.c

+10 −1
Original line number Diff line number Diff line
@@ -6,6 +6,9 @@ 
 *		 Heiko Carstens <heiko.carstens@de.ibm.com>

 */



#define KMSG_COMPONENT "setup"

#define pr_fmt(fmt) KMSG_COMPONENT ": " fmt



#include <linux/compiler.h>

#include <linux/init.h>

#include <linux/errno.h>
@@ -16,6 +19,7 @@ 
#include <linux/module.h>

#include <linux/pfn.h>

#include <linux/uaccess.h>

#include <linux/kernel.h>

#include <asm/ebcdic.h>

#include <asm/ipl.h>

#include <asm/lowcore.h>
@@ -140,6 +144,8 @@ static noinline __init void create_kernel_nss(void) 
	__cpcmd(defsys_cmd, NULL, 0, &response);



	if (response != 0) {

		pr_err("Defining the Linux kernel NSS failed with rc=%d\n",

			response);

		kernel_nss_name[0] = '\0';

		return;

	}
@@ -152,8 +158,11 @@ static noinline __init void create_kernel_nss(void) 
	 *	       max SAVESYS_CMD_SIZE

	 * On error: response contains the numeric portion of cp error message.

	 *	     for SAVESYS it will be >= 263

	 *	     for missing privilege class, it will be 1

	 */

	if (response > SAVESYS_CMD_SIZE) {

	if (response > SAVESYS_CMD_SIZE || response == 1) {

		pr_err("Saving the Linux kernel NSS failed with rc=%d\n",

			response);

		kernel_nss_name[0] = '\0';

		return;

	}