Displaying 17 results from an estimated 17 matches for "__same_type".
2023 Apr 10
1
[PATCH] tools/virtio: fix build caused by virtio_ring changes
...er to the member.
+ * @type: the type of the container struct this is embedded in.
+ * @member: the name of the member within the struct.
+ *
+ * WARNING: any const qualifier of @ptr is lost.
+ */
+#define container_of(ptr, type, member) ({ \
+ void *__mptr = (void *)(ptr); \
+ static_assert(__same_type(*(ptr), ((type *)0)->member) || \
+ __same_type(*(ptr), void), \
+ "pointer type mismatch in container_of()"); \
+ ((type *)(__mptr - offsetof(type, member))); })
+
+/**
+ * container_of_const - cast a member of a structure out to the containing
+ * structure and pres...
2020 Aug 04
1
[PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space
...macros in a vain attempt to
> + * help you keep your lunch down while reading it.
> + */
It might help with the lunch, but it still gives a slight queasiness.
No ideas for a better version, though.
> +#define __virtio_pick_value(x, type, then, otherwise) \
> + __builtin_choose_expr(__same_type(x, type), then, otherwise)
> +
> +#define __virtio_pick_type(x, type, then, otherwise) \
> + __virtio_pick_value(x, type, (then)0, otherwise)
> +
> +#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
> + __virtio_pick_type(x, x16, __u16, \
> + __virtio_pick_ty...
2020 Nov 03
0
[patch V3 06/37] highmem: Provide generic variant of kmap_atomic*
...revent people trying to call kunmap_atomic() as if it were kunmap()
* kunmap_atomic() should get the return value of kmap_atomic, not the page.
*/
-#define kunmap_atomic(addr) \
-do { \
- BUILD_BUG_ON(__same_type((addr), struct page *)); \
- kunmap_atomic_high(addr); \
- pagefault_enable(); \
- preempt_enable(); \
+#define kunmap_atomic(__addr) \
+do { \
+ BUILD_BUG_ON(__same_type((__a...
2020 Aug 05
2
[PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space
..._native_typeof(x) typeof(x)
> +
> +#else
> +
> +/*
> + * We build this out of a couple of helper macros in a vain attempt to
> + * help you keep your lunch down while reading it.
> + */
> +#define __virtio_pick_value(x, type, then, otherwise) \
> + __builtin_choose_expr(__same_type(x, type), then, otherwise)
> +
> +#define __virtio_pick_type(x, type, then, otherwise) \
> + __virtio_pick_value(x, type, (then)0, otherwise)
> +
> +#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
> + __virtio_pick_type(x, x16, __u16, \
> + __virtio_pick_ty...
2020 Aug 05
2
[PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space
..._native_typeof(x) typeof(x)
> +
> +#else
> +
> +/*
> + * We build this out of a couple of helper macros in a vain attempt to
> + * help you keep your lunch down while reading it.
> + */
> +#define __virtio_pick_value(x, type, then, otherwise) \
> + __builtin_choose_expr(__same_type(x, type), then, otherwise)
> +
> +#define __virtio_pick_type(x, type, then, otherwise) \
> + __virtio_pick_value(x, type, (then)0, otherwise)
> +
> +#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
> + __virtio_pick_type(x, x16, __u16, \
> + __virtio_pick_ty...
2020 Aug 03
0
[PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space
...e can keep things simple */
+#define __virtio_native_typeof(x) typeof(x)
+
+#else
+
+/*
+ * We build this out of a couple of helper macros in a vain attempt to
+ * help you keep your lunch down while reading it.
+ */
+#define __virtio_pick_value(x, type, then, otherwise) \
+ __builtin_choose_expr(__same_type(x, type), then, otherwise)
+
+#define __virtio_pick_type(x, type, then, otherwise) \
+ __virtio_pick_value(x, type, (then)0, otherwise)
+
+#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
+ __virtio_pick_type(x, x16, __u16, \
+ __virtio_pick_type(x, x32, __u32, \
+ __virtio...
2020 Aug 05
0
[PATCH v3 03/38] virtio: allow __virtioXX, __leXX in config space
...e can keep things simple */
+#define __virtio_native_typeof(x) typeof(x)
+
+#else
+
+/*
+ * We build this out of a couple of helper macros in a vain attempt to
+ * help you keep your lunch down while reading it.
+ */
+#define __virtio_pick_value(x, type, then, otherwise) \
+ __builtin_choose_expr(__same_type(x, type), then, otherwise)
+
+#define __virtio_pick_type(x, type, then, otherwise) \
+ __virtio_pick_value(x, type, (then)0, otherwise)
+
+#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
+ __virtio_pick_type(x, x16, __u16, \
+ __virtio_pick_type(x, x32, __u32, \
+ __virtio...
2020 Nov 03
0
[patch V3 22/37] highmem: High implementation details and document API
...g totalhigh_pages(void) { return 0UL; }
+
+#endif /* CONFIG_HIGHMEM */
+
+/*
+ * Prevent people trying to call kunmap_atomic() as if it were kunmap()
+ * kunmap_atomic() should get the return value of kmap_atomic, not the page.
+ */
+#define kunmap_atomic(__addr) \
+do { \
+ BUILD_BUG_ON(__same_type((__addr), struct page *)); \
+ __kunmap_atomic(__addr); \
+} while (0)
+
+#endif
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -11,199 +11,125 @@
#include <asm/cacheflush.h>
-#ifndef ARCH_HAS_FLUSH_ANON_PAGE
-static inline void flush_anon_page(struct vm_area_struct *v...
2020 Aug 05
0
[PATCH v2 03/24] virtio: allow __virtioXX, __leXX in config space
...> +#else
> > +
> > +/*
> > + * We build this out of a couple of helper macros in a vain attempt to
> > + * help you keep your lunch down while reading it.
> > + */
> > +#define __virtio_pick_value(x, type, then, otherwise) \
> > + __builtin_choose_expr(__same_type(x, type), then, otherwise)
> > +
> > +#define __virtio_pick_type(x, type, then, otherwise) \
> > + __virtio_pick_value(x, type, (then)0, otherwise)
> > +
> > +#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
> > + __virtio_pick_type(x, x16, __u16,...
2020 Aug 05
0
[PATCH v3 24/38] virtio_config: rewrite using _Generic
...e can keep things simple */
-#define __virtio_native_typeof(x) typeof(x)
-
-#else
-
-/*
- * We build this out of a couple of helper macros in a vain attempt to
- * help you keep your lunch down while reading it.
- */
-#define __virtio_pick_value(x, type, then, otherwise) \
- __builtin_choose_expr(__same_type(x, type), then, otherwise)
-
-#define __virtio_pick_type(x, type, then, otherwise) \
- __virtio_pick_value(x, type, (then)0, otherwise)
-
-#define __virtio_pick_endian(x, x16, x32, x64, otherwise) \
- __virtio_pick_type(x, x16, __u16, \
- __virtio_pick_type(x, x32, __u32, \
- __virtio...
2020 Nov 03
0
[patch V3 25/37] mm/highmem: Provide kmap_local*
...#ifdef ARCH_HAS_FLUSH_ON_KUNMAP
+ kunmap_flush_on_unmap(addr);
+#endif
+}
+
static inline void *kmap_atomic(struct page *page)
{
preempt_disable();
@@ -182,4 +224,10 @@ do { \
__kunmap_atomic(__addr); \
} while (0)
+#define kunmap_local(__addr) \
+do { \
+ BUILD_BUG_ON(__same_type((__addr), struct page *)); \
+ __kunmap_local(__addr); \
+} while (0)
+
#endif
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -60,24 +60,22 @@ static inline struct page *kmap_to_page(
static inline void kmap_flush_unused(void);
/**
- * kmap_atomic - Atomically map a page fo...
2019 Nov 08
0
[PATCH 01/13] compiler.h: Split {READ, WRITE}_ONCE definitions out into rwonce.h
...; \
- __write_once_size(&(x), __u.__c, sizeof(x)); \
- __u.__val; \
-})
-
#endif /* __KERNEL__ */
/*
@@ -356,4 +244,6 @@ static inline void *offset_to_ptr(const int *off)
/* &a[0] degrades to a pointer: a different type from an array */
#define __must_be_array(a) BUILD_BUG_ON_ZERO(__same_type((a), &(a)[0]))
+#include <asm/rwonce.h>
+
#endif /* __LINUX_COMPILER_H */
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h
index cdf016596659..7cb92286de9f 100644
--- a/include/linux/compiler_attributes.h
+++ b/include/linux/compiler_attributes.h
@...
2020 Aug 03
51
[PATCH v2 00/24] virtio: config space endian-ness cleanup
Config space endian-ness is currently a mess: fields are
not tagged with the correct endian-ness so it's easy
to make mistakes like instanciating config space in
native endian-ness.
The following patches adding sparse tagging are currently in my tree.
Lightly tested.
As a follow-up, I plan to add new APIs that handle modern config space
in a more efficient way (bypassing the version check).
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2020 Nov 03
45
[patch V3 00/37] mm/highmem: Preemptible variant of kmap_atomic & friends
Following up to the discussion in:
https://lore.kernel.org/r/20200914204209.256266093 at linutronix.de
and the second version of this:
https://lore.kernel.org/r/20201029221806.189523375 at linutronix.de
this series provides a preemptible variant of kmap_atomic & related
interfaces.
This is achieved by:
- Removing the RT dependency from migrate_disable/enable()
- Consolidating all
2019 Nov 08
15
[PATCH 00/13] Finish off [smp_]read_barrier_depends()
Hi all,
Although [smp_]read_barrier_depends() became part of READ_ONCE() in
commit 76ebbe78f739 ("locking/barriers: Add implicit
smp_read_barrier_depends() to READ_ONCE()"), it still limps on in the
Linux memory model with the sinister hope of attracting innocent new
users so that it becomes impossible to remove altogether.
Let's strike before it's too late: there's only