diff options
author | Vasily Gorbik <gor@linux.vnet.ibm.com> | 2018-02-20 13:28:33 +0100 |
---|---|---|
committer | Martin Schwidefsky <schwidefsky@de.ibm.com> | 2018-02-27 08:05:23 +0100 |
commit | 320d9555cb9d2f42cf933c7f59468998933f6cc7 (patch) | |
tree | 829c10a73a1d891385749fc6d6ef936c35cec5e6 | |
parent | s390/decompressor: discard __ex_table section (diff) | |
download | linux-320d9555cb9d2f42cf933c7f59468998933f6cc7.tar.xz linux-320d9555cb9d2f42cf933c7f59468998933f6cc7.zip |
s390: unify linker symbols usage
Common code defines linker symbols which denote sections start/end in
a form of char []. Referencing those symbols as _symbol or &_symbol
yields the same result, but "_symbol" form is more widespread across
newly written code. Convert s390 specific code to this style.
Also removes unused _text symbol definition in boot/compressed/misc.c.
Signed-off-by: Vasily Gorbik <gor@linux.vnet.ibm.com>
Acked-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Martin Schwidefsky <schwidefsky@de.ibm.com>
-rw-r--r-- | arch/s390/boot/compressed/misc.c | 10 | ||||
-rw-r--r-- | arch/s390/kernel/early.c | 2 | ||||
-rw-r--r-- | arch/s390/kernel/setup.c | 20 | ||||
-rw-r--r-- | arch/s390/kernel/suspend.c | 4 | ||||
-rw-r--r-- | arch/s390/mm/dump_pagetables.c | 4 |
5 files changed, 20 insertions, 20 deletions
diff --git a/arch/s390/boot/compressed/misc.c b/arch/s390/boot/compressed/misc.c index cecf38b9ec82..63838a17e56a 100644 --- a/arch/s390/boot/compressed/misc.c +++ b/arch/s390/boot/compressed/misc.c @@ -27,8 +27,8 @@ /* Symbols defined by linker scripts */ extern char input_data[]; extern int input_len; -extern char _text, _end; -extern char _bss, _ebss; +extern char _end[]; +extern char _bss[], _ebss[]; static void error(char *m); @@ -144,7 +144,7 @@ unsigned long decompress_kernel(void) { void *output, *kernel_end; - output = (void *) ALIGN((unsigned long) &_end + HEAP_SIZE, PAGE_SIZE); + output = (void *) ALIGN((unsigned long) _end + HEAP_SIZE, PAGE_SIZE); kernel_end = output + SZ__bss_start; check_ipl_parmblock((void *) 0, (unsigned long) kernel_end); @@ -166,8 +166,8 @@ unsigned long decompress_kernel(void) * Clear bss section. free_mem_ptr and free_mem_end_ptr need to be * initialized afterwards since they reside in bss. */ - memset(&_bss, 0, &_ebss - &_bss); - free_mem_ptr = (unsigned long) &_end; + memset(_bss, 0, _ebss - _bss); + free_mem_ptr = (unsigned long) _end; free_mem_end_ptr = free_mem_ptr + HEAP_SIZE; __decompress(input_data, input_len, NULL, NULL, output, 0, NULL, error); diff --git a/arch/s390/kernel/early.c b/arch/s390/kernel/early.c index ac707a9f729e..53d089fc4501 100644 --- a/arch/s390/kernel/early.c +++ b/arch/s390/kernel/early.c @@ -67,7 +67,7 @@ static noinline __init void init_kernel_storage_key(void) #if PAGE_DEFAULT_KEY unsigned long end_pfn, init_pfn; - end_pfn = PFN_UP(__pa(&_end)); + end_pfn = PFN_UP(__pa(_end)); for (init_pfn = 0 ; init_pfn < end_pfn; init_pfn++) page_set_storage_key(init_pfn << PAGE_SHIFT, diff --git a/arch/s390/kernel/setup.c b/arch/s390/kernel/setup.c index a6a91f01a17a..70ed7c72ab59 100644 --- a/arch/s390/kernel/setup.c +++ b/arch/s390/kernel/setup.c @@ -413,12 +413,12 @@ static void __init setup_resources(void) struct memblock_region *reg; int j; - code_resource.start = (unsigned long) &_text; - code_resource.end = (unsigned long) &_etext - 1; - data_resource.start = (unsigned long) &_etext; - data_resource.end = (unsigned long) &_edata - 1; - bss_resource.start = (unsigned long) &__bss_start; - bss_resource.end = (unsigned long) &__bss_stop - 1; + code_resource.start = (unsigned long) _text; + code_resource.end = (unsigned long) _etext - 1; + data_resource.start = (unsigned long) _etext; + data_resource.end = (unsigned long) _edata - 1; + bss_resource.start = (unsigned long) __bss_start; + bss_resource.end = (unsigned long) __bss_stop - 1; for_each_memblock(memory, reg) { res = memblock_virt_alloc(sizeof(*res), 8); @@ -667,7 +667,7 @@ static void __init check_initrd(void) */ static void __init reserve_kernel(void) { - unsigned long start_pfn = PFN_UP(__pa(&_end)); + unsigned long start_pfn = PFN_UP(__pa(_end)); #ifdef CONFIG_DMA_API_DEBUG /* @@ -888,9 +888,9 @@ void __init setup_arch(char **cmdline_p) /* Is init_mm really needed? */ init_mm.start_code = PAGE_OFFSET; - init_mm.end_code = (unsigned long) &_etext; - init_mm.end_data = (unsigned long) &_edata; - init_mm.brk = (unsigned long) &_end; + init_mm.end_code = (unsigned long) _etext; + init_mm.end_data = (unsigned long) _edata; + init_mm.brk = (unsigned long) _end; parse_early_param(); #ifdef CONFIG_CRASH_DUMP diff --git a/arch/s390/kernel/suspend.c b/arch/s390/kernel/suspend.c index ce329c876d8c..75b7b307946e 100644 --- a/arch/s390/kernel/suspend.c +++ b/arch/s390/kernel/suspend.c @@ -153,8 +153,8 @@ int pfn_is_nosave(unsigned long pfn) { unsigned long nosave_begin_pfn = PFN_DOWN(__pa(&__nosave_begin)); unsigned long nosave_end_pfn = PFN_DOWN(__pa(&__nosave_end)); - unsigned long end_rodata_pfn = PFN_DOWN(__pa(&__end_rodata)) - 1; - unsigned long stext_pfn = PFN_DOWN(__pa(&_stext)); + unsigned long end_rodata_pfn = PFN_DOWN(__pa(__end_rodata)) - 1; + unsigned long stext_pfn = PFN_DOWN(__pa(_stext)); /* Always save lowcore pages (LC protection might be enabled). */ if (pfn <= LC_PAGES) diff --git a/arch/s390/mm/dump_pagetables.c b/arch/s390/mm/dump_pagetables.c index 507f23ba2034..7cdea2ec51e9 100644 --- a/arch/s390/mm/dump_pagetables.c +++ b/arch/s390/mm/dump_pagetables.c @@ -24,8 +24,8 @@ enum address_markers_idx { static struct addr_marker address_markers[] = { [IDENTITY_NR] = {0, "Identity Mapping"}, - [KERNEL_START_NR] = {(unsigned long)&_stext, "Kernel Image Start"}, - [KERNEL_END_NR] = {(unsigned long)&_end, "Kernel Image End"}, + [KERNEL_START_NR] = {(unsigned long)_stext, "Kernel Image Start"}, + [KERNEL_END_NR] = {(unsigned long)_end, "Kernel Image End"}, [VMEMMAP_NR] = {0, "vmemmap Area"}, [VMALLOC_NR] = {0, "vmalloc Area"}, [MODULES_NR] = {0, "Modules Area"}, |