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authorHeiko Carstens <heiko.carstens@de.ibm.com>2010-03-24 11:49:55 +0100
committerMartin Schwidefsky <sky@mschwide.boeblingen.de.ibm.com>2010-03-24 11:49:53 +0100
commit9c95258c0d5911ae263bf50d854e402ce973ab32 (patch)
treea91567d8b0fea7ef722209183610f63ff93ee1d8 /drivers/s390
parentb8fde7224d771ce55bfd67cb57d7c4c8f430972f (diff)
downloadlinux-9c95258c0d5911ae263bf50d854e402ce973ab32.tar.gz
[S390] sclp: avoid 64 bit division
Avoid 64 bit division to fix this compile error on 32 bit:
drivers/s390/char/sclp_cmd.c:711: undefined reference to `__udivdi3'

Also move the whole arch_get_memory_phys_device function to the
memory hotplug related functions.

Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
Diffstat (limited to 'drivers/s390')
-rw-r--r--drivers/s390/char/sclp_cmd.c14
1 files changed, 7 insertions, 7 deletions
diff --git a/drivers/s390/char/sclp_cmd.c b/drivers/s390/char/sclp_cmd.c
index fc7ae05ce48a..4b60ede07f0e 100644
--- a/drivers/s390/char/sclp_cmd.c
+++ b/drivers/s390/char/sclp_cmd.c
@@ -308,6 +308,13 @@ struct assign_storage_sccb {
 	u16 rn;
 } __packed;
 
+int arch_get_memory_phys_device(unsigned long start_pfn)
+{
+	if (!rzm)
+		return 0;
+	return PFN_PHYS(start_pfn) >> ilog2(rzm);
+}
+
 static unsigned long long rn2addr(u16 rn)
 {
 	return (unsigned long long) (rn - 1) * rzm;
@@ -704,13 +711,6 @@ int sclp_chp_deconfigure(struct chp_id chpid)
 	return do_chp_configure(SCLP_CMDW_DECONFIGURE_CHPATH | chpid.id << 8);
 }
 
-int arch_get_memory_phys_device(unsigned long start_pfn)
-{
-	if (!rzm)
-		return 0;
-	return PFN_PHYS(start_pfn) / rzm;
-}
-
 struct chp_info_sccb {
 	struct sccb_header header;
 	u8 recognized[SCLP_CHP_INFO_MASK_SIZE];