From: Jesse Gross <jesse@xxxxxxxxxx> Date: Thu, 29 Aug 2013 14:42:22 -0700 > On Thu, Aug 29, 2013 at 2:21 PM, Geert Uytterhoeven > <geert@xxxxxxxxxxxxxx> wrote: >> However, I have some doubts about other alignment "enforcements": >> >> "__aligned(__alignof__(long))" makes the whole struct aligned to the >> alignment rule for "long": >> 1. This is only 2 bytes on m68k, i.e. != sizeof(long). >> 2. This is 4 bytes on many 32-bit platforms, which may be less than the >> default alignment for "__be64" (cfr. some members of struct >> ovs_key_ipv4_tunnel), so this may make those 64-bit members unaligned. > > Do any of those 32-bit architectures actually care about alignment of > 64 bit values? On 32-bit x86, a long is 32 bits but the alignment > requirement of __be64 is also 32 bit. All except x86-32 do, it is in fact the odd man out with respect to this issue. -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
