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Geert Uytterhoeven authored
Commit ffe8018c ("initramfs: fix initramfs size calculation") broke 32-bit big-endian arches like (on ARAnyM): VFS: Cannot open root device "hda1" or unknown-block(3,1) Please append a correct "root=" boot option; here are the available partitions: fe80 1059408 nfhd8 (driver?) fe81 921600 nfhd8p1 00000000-0000-0000-0000-000000000nfhd8p1 fe82 137807 nfhd8p2 00000000-0000-0000-0000-000000000nfhd8p2 0200 3280 fd0 (driver?) 0201 3280 fd1 (driver?) 0300 1059408 hda driver: ide-gd 0301 921600 hda1 00000000-0000-0000-0000-000000000hda1 0302 137807 hda2 00000000-0000-0000-0000-000000000hda2 Kernel panic - not syncing: VFS: Unable to mount root fs on unknown-block(3,1) As pointed out by Kerstin Jonsson <kerstin.jonsson@ericsson.com>, this is due to CONFIG_32BIT not being defined, so the initramfs size field is done as a 64-bit quad. On little-endian (like x86) this doesn matter, but on a big-endian machine the 32-bit reads will see the (zero) high bits. Only mips, s390, and score set CONFIG_32BIT for 32-bit builds, so fix it for all other 32-bit arches by inverting the logic and testing for CONFIG_64BIT, which should be defined on all 64-bit arches. Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> [ I think we should just make it "u64" on all architectures and get rid of the whole #ifdef CONFIG_xxBIT - Linus ] Signed-off-by:
Linus Torvalds <torvalds@linux-foundation.org>
96f93593