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authorHendrik Brueckner <brueckner@linux.vnet.ibm.com>2009-09-11 10:28:41 +0200
committerMartin Schwidefsky <schwidefsky@de.ibm.com>2009-09-11 10:29:46 +0200
commit18d00acfe2f3fc5ee62f679eb2e397ae962fe69b (patch)
treebeb18427dba544c4ace628980bf445564b85e765 /arch
parent684d2fd48e718e70dad21ef7c528649578147e48 (diff)
downloadlinux-18d00acfe2f3fc5ee62f679eb2e397ae962fe69b.tar.bz2
[S390] kernel: Convert upper case scpdata to lower case
If the CP SET LOADDEV on the 3215 console has been used to specify SCPdata, all data is converted to upper case letters. When scpdata contains upper case letters only, convert all letters to lower case. Signed-off-by: Hendrik Brueckner <brueckner@linux.vnet.ibm.com> Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'arch')
-rw-r--r--arch/s390/kernel/ipl.c13
1 files changed, 11 insertions, 2 deletions
diff --git a/arch/s390/kernel/ipl.c b/arch/s390/kernel/ipl.c
index 04451a5e3c15..ee57a42e6e93 100644
--- a/arch/s390/kernel/ipl.c
+++ b/arch/s390/kernel/ipl.c
@@ -340,19 +340,28 @@ size_t reipl_append_ascii_scpdata(char *dest, size_t size,
{
size_t count;
size_t i;
+ int has_lowercase;
count = min(size - 1, scpdata_length(ipb->ipl_info.fcp.scp_data,
ipb->ipl_info.fcp.scp_data_len));
if (!count)
goto out;
- for (i = 0; i < count; i++)
+ has_lowercase = 0;
+ for (i = 0; i < count; i++) {
if (!isascii(ipb->ipl_info.fcp.scp_data[i])) {
count = 0;
goto out;
}
+ if (!has_lowercase && islower(ipb->ipl_info.fcp.scp_data[i]))
+ has_lowercase = 1;
+ }
- memcpy(dest, ipb->ipl_info.fcp.scp_data, count);
+ if (has_lowercase)
+ memcpy(dest, ipb->ipl_info.fcp.scp_data, count);
+ else
+ for (i = 0; i < count; i++)
+ dest[i] = tolower(ipb->ipl_info.fcp.scp_data[i]);
out:
dest[count] = '\0';
return count;