On Tue, 25 Sep 2007 20:23:02 +0200 Bernhard Walle <bwalle at suse.de> wrote: > This patch adapts the ppc64 code to use the generic parse_crashkernel() > function introduced in the generic patch of that series. > > I really don't like to see patches get a wholesale replacement, especially when they've been looked at by a few people and have had some testing, etc. It's not possible to see what changed and people need to re-review stuff they've already reviewed, etc. So I almost always undo this mess, turn the patches back into incremental ones, see what pops out. This patch is actually: diff -puN arch/powerpc/kernel/machine_kexec.c~use-extended-crashkernel-command-line-on-ppc64-update arch/powerpc/kernel/machine_kexec.c --- a/arch/powerpc/kernel/machine_kexec.c~use-extended-crashkernel-command-line-on-ppc64-update +++ a/arch/powerpc/kernel/machine_kexec.c @@ -63,7 +63,7 @@ NORET_TYPE void machine_kexec(struct kim void __init reserve_crashkernel(void) { - unsigned long long crash_size = 0, crash_base; + unsigned long long crash_size, crash_base; int ret; /* this is necessary because of lmb_phys_mem_size() */ _ which I suspect will now create a compiler warning. unsigned long long crash_size, crash_base; int ret; /* this is necessary because of lmb_phys_mem_size() */ lmb_analyze(); /* use common parsing */ ret = parse_crashkernel(boot_command_line, lmb_phys_mem_size(), &crash_size, &crash_base); if (ret == 0 && crash_size > 0) { if (crash_base == 0) crash_base = KDUMP_KERNELBASE; crashk_res.start = crash_base; } else { /* handle the device tree */ crash_size = crashk_res.end - crashk_res.start + 1; } if (crash_size == 0) return; If so, the use of uninitialized_var() would be better than the unneeded initialization-to-zero.