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authorJeff Garzik <jeff@garzik.org>2007-10-03 15:15:40 -0400
committerJeff Garzik <jeff@garzik.org>2007-10-09 20:22:20 -0400
commit1855256c497ecfefc730df6032243f26855ce52c (patch)
treeb73947f1a5e1b798e1dec068ac1cda25ae910bf6 /drivers/char/i8k.c
parentbbf25010f1a6b761914430f5fca081ec8c7accd1 (diff)
drivers/firmware: const-ify DMI API and internals
Three main sets of changes: 1) dmi_get_system_info() return value should have been marked const, since callers should not be changing that data. 2) const-ify DMI internals, since DMI firmware tables should, whenever possible, be marked const to ensure we never ever write to that data area. 3) const-ify DMI API, to enable marking tables const where possible in low-level drivers. And if we're really lucky, this might enable some additional optimizations on the part of the compiler. The bulk of the changes are #2 and #3, which are interrelated. #1 could have been a separate patch, but it was so small compared to the others, it was easier to roll it into this changeset. Signed-off-by: Jeff Garzik <jgarzik@redhat.com>
Diffstat (limited to 'drivers/char/i8k.c')
-rw-r--r--drivers/char/i8k.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/char/i8k.c b/drivers/char/i8k.c
index 0289705967de..cd406416effd 100644
--- a/drivers/char/i8k.c
+++ b/drivers/char/i8k.c
@@ -98,9 +98,9 @@ struct smm_regs {
98 unsigned int edi __attribute__ ((packed)); 98 unsigned int edi __attribute__ ((packed));
99}; 99};
100 100
101static inline char *i8k_get_dmi_data(int field) 101static inline const char *i8k_get_dmi_data(int field)
102{ 102{
103 char *dmi_data = dmi_get_system_info(field); 103 const char *dmi_data = dmi_get_system_info(field);
104 104
105 return dmi_data && *dmi_data ? dmi_data : "?"; 105 return dmi_data && *dmi_data ? dmi_data : "?";
106} 106}