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| author | Jeff Garzik <jeff@garzik.org> | 2007-10-03 15:15:40 -0400 |
|---|---|---|
| committer | Jeff Garzik <jeff@garzik.org> | 2007-10-09 20:22:20 -0400 |
| commit | 1855256c497ecfefc730df6032243f26855ce52c (patch) | |
| tree | b73947f1a5e1b798e1dec068ac1cda25ae910bf6 /drivers/char/i8k.c | |
| parent | bbf25010f1a6b761914430f5fca081ec8c7accd1 (diff) | |
| download | linux-1855256c497ecfefc730df6032243f26855ce52c.tar.bz2 | |
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.c | 4 |
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 { unsigned int edi __attribute__ ((packed)); }; -static inline char *i8k_get_dmi_data(int field) +static inline const char *i8k_get_dmi_data(int field) { - char *dmi_data = dmi_get_system_info(field); + const char *dmi_data = dmi_get_system_info(field); return dmi_data && *dmi_data ? dmi_data : "?"; } |