aboutsummaryrefslogtreecommitdiff
path: root/include/linux
diff options
context:
space:
mode:
authorLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-08 10:04:20 -0800
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-02-08 10:04:20 -0800
commit21eb4fa1700112d1420d72e1de708af671a251c8 (patch)
tree3afd9f526da50108c27e05ac69826be5e7c2ad6e /include/linux
parent0c0e8caf9fd6c9a49fb9fbdba14a8b7b4239adde (diff)
parentd003e7a1a569501cbe9a5ca14748177498c4893a (diff)
Merge master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc
* master.kernel.org:/pub/scm/linux/kernel/git/paulus/powerpc: (116 commits) [POWERPC] Add export of vgacon_remap_base [POWERPC] Remove bogus comment about page_is_ram [POWERPC] windfarm: don't die on suspend thread signal [POWERPC] Fix comment in kernel/irq.c [POWERPC] ppc: Fix booke watchdog initialization [POWERPC] PPC: Use ARRAY_SIZE macro when appropriate [POWERPC] Use ARRAY_SIZE macro when appropriate [POWERPC] Fix ppc64's writing to struct file_operations [POWERPC] ppc: use syslog macro for the printk log level [POWERPC] ppc: cs4218_tdm remove extra brace [POWERPC] Add mpc52xx/lite5200 PCI support [POWERPC] Only use H_BULK_REMOVE if the firmware supports it [POWERPC] Fixup error handling when emulating a floating point instruction [POWERPC] Enable interrupts if we are doing fp math emulation [POWERPC] Added kprobes support to ppc32 [POWERPC] Make pSeries use the H_BULK_REMOVE hypervisor call [POWERPC] Clear RI bit in MSR before restoring r13 when returning to userspace [POWERPC] Fix performance monitor exception [POWERPC] Compile fixes for arch/powerpc dcr code [POWERPC] Maple: use mmio nvram ...
Diffstat (limited to 'include/linux')
-rw-r--r--include/linux/log2.h11
-rw-r--r--include/linux/sysdev.h12
2 files changed, 19 insertions, 4 deletions
diff --git a/include/linux/log2.h b/include/linux/log2.h
index d02e1a547a7..99922bedfcc 100644
--- a/include/linux/log2.h
+++ b/include/linux/log2.h
@@ -44,6 +44,17 @@ int __ilog2_u64(u64 n)
#endif
/*
+ * Determine whether some value is a power of two, where zero is
+ * *not* considered a power of two.
+ */
+
+static inline __attribute__((const))
+bool is_power_of_2(unsigned long n)
+{
+ return (n != 0 && ((n & (n - 1)) == 0));
+}
+
+/*
* round up to nearest power of two
*/
static inline __attribute__((const))
diff --git a/include/linux/sysdev.h b/include/linux/sysdev.h
index 166a2e58c28..389ccf858d3 100644
--- a/include/linux/sysdev.h
+++ b/include/linux/sysdev.h
@@ -98,12 +98,16 @@ struct sysdev_attribute {
};
-#define SYSDEV_ATTR(_name,_mode,_show,_store) \
-struct sysdev_attribute attr_##_name = { \
- .attr = {.name = __stringify(_name), .mode = _mode }, \
+#define _SYSDEV_ATTR(_name,_mode,_show,_store) \
+{ \
+ .attr = { .name = __stringify(_name), .mode = _mode, \
+ .owner = THIS_MODULE }, \
.show = _show, \
.store = _store, \
-};
+}
+
+#define SYSDEV_ATTR(_name,_mode,_show,_store) \
+struct sysdev_attribute attr_##_name = _SYSDEV_ATTR(_name,_mode,_show,_store);
extern int sysdev_create_file(struct sys_device *, struct sysdev_attribute *);
extern void sysdev_remove_file(struct sys_device *, struct sysdev_attribute *);