[S390] kernel: Convert upper case scpdata to lower case (18d00acf) · Commits · 戴 / test

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>

arch/s390/kernel/ipl.c

+11 −2

Original line number	Diff line number	Diff line
		@@ -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;
		}

		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;

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