On 11/1/23 15:24, Jonathan Cameron via wrote:
From: Ira Weiny <ira.we...@intel.com>
Gcc requires constant versions of cpu_to_le* calls.
Add a 64 bit version.
Reviewed-by: Peter Maydell <peter.mayd...@linaro.org>
Signed-off-by: Ira Weiny <ira.we...@intel.com>
Signed-off-by: Jonathan Cameron <jonathan.came...@huawei.com>
---
include/qemu/bswap.h | 10 ++++++++++
1 file changed, 10 insertions(+)
diff --git a/include/qemu/bswap.h b/include/qemu/bswap.h
index 346d05f2aa..e1eca22f25 100644
--- a/include/qemu/bswap.h
+++ b/include/qemu/bswap.h
@@ -187,6 +187,15 @@ CPU_CONVERT(le, 64, uint64_t)
* used to initialize static variables.
*/
#if HOST_BIG_ENDIAN
+# define const_le64(_x) \
+ ((((_x) & 0x00000000000000ffU) << 56) | \
+ (((_x) & 0x000000000000ff00U) << 40) | \
+ (((_x) & 0x0000000000ff0000U) << 24) | \
+ (((_x) & 0x00000000ff000000U) << 8) | \
+ (((_x) & 0x000000ff00000000U) >> 8) | \
+ (((_x) & 0x0000ff0000000000U) >> 24) | \
+ (((_x) & 0x00ff000000000000U) >> 40) | \
+ (((_x) & 0xff00000000000000U) >> 56))
So looking back at
https://lore.kernel.org/qemu-devel/20200917163106.49351-4-phi...@redhat.com/
this patch missed to update the function description:
/*
- * Same as cpu_to_{be,le}{16,32} described below, except that gcc will
+ * Same as cpu_to_{be,le}{16,32,64} described below, except that gcc will
* figure the result is a compile-time constant if you pass in a constant.
* So this can be used to initialize static variables.
*/
