diff options
Diffstat (limited to 'arch/s390/kernel/crash_dump.c')
| -rw-r--r-- | arch/s390/kernel/crash_dump.c | 24 |
1 files changed, 3 insertions, 21 deletions
diff --git a/arch/s390/kernel/crash_dump.c b/arch/s390/kernel/crash_dump.c index 171e09bb8ea2..07d75b969f59 100644 --- a/arch/s390/kernel/crash_dump.c +++ b/arch/s390/kernel/crash_dump.c @@ -73,11 +73,6 @@ static int copy_from_realmem(void *dest, void *src, size_t count) } /* - * Pointer to ELF header in new kernel - */ -static void *elfcorehdr_newmem; - -/* * Copy one page from zfcpdump "oldmem" * * For pages below HSA size memory from the HSA is copied. Otherwise @@ -390,7 +385,8 @@ static void *nt_s390_vx_low(void *ptr, __vector128 *vx_regs) /* * Fill ELF notes for one CPU with save area registers */ -void *fill_cpu_elf_notes(void *ptr, struct save_area *sa, __vector128 *vx_regs) +static void *fill_cpu_elf_notes(void *ptr, struct save_area *sa, + __vector128 *vx_regs) { ptr = nt_prstatus(ptr, sa); ptr = nt_fpregset(ptr, sa); @@ -573,9 +569,6 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size) /* If we are not in kdump or zfcpdump mode return */ if (!OLDMEM_BASE && ipl_info.type != IPL_TYPE_FCP_DUMP) return 0; - /* If elfcorehdr= has been passed via cmdline, we use that one */ - if (elfcorehdr_addr != ELFCORE_ADDR_MAX) - return 0; /* If we cannot get HSA size for zfcpdump return error */ if (ipl_info.type == IPL_TYPE_FCP_DUMP && !sclp.hsa_size) return -ENODEV; @@ -606,7 +599,6 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size) hdr_off = PTR_DIFF(ptr, hdr); loads_init(phdr_loads, hdr_off); *addr = (unsigned long long) hdr; - elfcorehdr_newmem = hdr; *size = (unsigned long long) hdr_off; BUG_ON(elfcorehdr_size > alloc_size); return 0; @@ -617,8 +609,6 @@ int elfcorehdr_alloc(unsigned long long *addr, unsigned long long *size) */ void elfcorehdr_free(unsigned long long addr) { - if (!elfcorehdr_newmem) - return; kfree((void *)(unsigned long)addr); } @@ -629,7 +619,6 @@ ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos) { void *src = (void *)(unsigned long)*ppos; - src = elfcorehdr_newmem ? src : src - OLDMEM_BASE; memcpy(buf, src, count); *ppos += count; return count; @@ -641,15 +630,8 @@ ssize_t elfcorehdr_read(char *buf, size_t count, u64 *ppos) ssize_t elfcorehdr_read_notes(char *buf, size_t count, u64 *ppos) { void *src = (void *)(unsigned long)*ppos; - int rc; - if (elfcorehdr_newmem) { - memcpy(buf, src, count); - } else { - rc = copy_from_oldmem(buf, src, count); - if (rc) - return rc; - } + memcpy(buf, src, count); *ppos += count; return count; } |