From: Tony Breeds Date: Wed, 20 Jun 2007 05:17:29 +0000 (+1000) Subject: [POWERPC] Fix powermac late initcall to only run on powermac X-Git-Tag: firefly_0821_release~28646^2 X-Git-Url: http://demsky.eecs.uci.edu/git/?a=commitdiff_plain;h=c5f226c7e95bf318879fb6ae02fc0dfb0f6d408c;p=firefly-linux-kernel-4.4.55.git [POWERPC] Fix powermac late initcall to only run on powermac Current ppc64_defconfig kernel fails to boot on iSeries, dying with: Unable to handle kernel paging request for data at address 0x00000000 Faulting instruction address: 0xc00000000071b258 Oops: Kernel access of bad area, sig: 11 [#1] SMP NR_CPUS=32 iSeries NIP [c00000000071b258] .iSeries_src_init+0x34/0x64 LR [c000000000701bb4] .kernel_init+0x1fc/0x3bc Call Trace: [c000000007d0be30] [0000000000008000] 0x8000 (unreliable) [c000000007d0bea0] [c000000000701bb4] .kernel_init+0x1fc/0x3bc [c000000007d0bf90] [c0000000000262d4] .kernel_thread+0x4c/0x68 Instruction dump: e922cba8 3880ffff 78840420 f8010010 f821ff91 60000000 e8090000 78095fe3 4182002c e922cb58 e862cbb0 e9290140 f8410028 7c0903a6 e9690010 Kernel panic - not syncing: Attempted to kill init! This happens because some powermac code unconditionally sets ppc_md.progress to NULL. This patch makes sure the powermac late initcall is only run on powermac machines. Signed-off-by: Tony Breeds Signed-off-by: Paul Mackerras --- diff --git a/arch/powerpc/platforms/powermac/setup.c b/arch/powerpc/platforms/powermac/setup.c index 956571526a57..7ccb9236e8b4 100644 --- a/arch/powerpc/platforms/powermac/setup.c +++ b/arch/powerpc/platforms/powermac/setup.c @@ -454,6 +454,9 @@ static int initializing = 1; static int pmac_late_init(void) { + if (!machine_is(powermac)) + return -ENODEV; + initializing = 0; /* this is udbg (which is __init) and we can later use it during * cpu hotplug (in smp_core99_kick_cpu) */