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Merge branches 'doc.2017.08.17a', 'fixes.2017.08.17a', 'hotplug.2017.07.25b', 'misc.2017.08.17a', 'spin_unlock_wait_no.2017.08.17a', 'srcu.2017.07.27c' and 'torture.2017.07.24c' into HEAD

Browse source 
doc.2017.08.17a: Documentation updates.
fixes.2017.08.17a: RCU fixes.
hotplug.2017.07.25b: CPU-hotplug updates.
misc.2017.08.17a: Miscellaneous fixes outside of RCU (give or take conflicts).
spin_unlock_wait_no.2017.08.17a: Remove spin_unlock_wait().
srcu.2017.07.27c: SRCU updates.
torture.2017.07.24c: Torture-test updates.
This commit is contained in:
Paul E. McKenney 2017-08-17 08:10:04 -07:00
commit 656e7c0c0a
75 changed files with 898 additions and 1214 deletions
Download patch file Download diff file Expand all files Collapse all files

5
arch/blackfin/include/asm/spinlock.h
View file

@ -48,11 +48,6 @@ static inline void arch_spin_unlock(arch_spinlock_t *lock)
__raw_spin_unlock_asm(&lock->lock);
}
static inline void arch_spin_unlock_wait(arch_spinlock_t *lock)
{
smp_cond_load_acquire(&lock->lock, !VAL);
}
static inline int arch_read_can_lock(arch_rwlock_t *rw)
{
return __raw_uncached_fetch_asm(&rw->lock) > 0;

39
arch/blackfin/kernel/module.c
View file

@ -4,8 +4,6 @@
* Licensed under the GPL-2 or later
*/
#define pr_fmt(fmt) "module %s: " fmt, mod->name
#include <linux/moduleloader.h>
#include <linux/elf.h>
#include <linux/vmalloc.h>
@ -16,6 +14,11 @@
#include <asm/cacheflush.h>
#include <linux/uaccess.h>
#define mod_err(mod, fmt, ...) \
pr_err("module %s: " fmt, (mod)->name, ##__VA_ARGS__)
#define mod_debug(mod, fmt, ...) \
pr_debug("module %s: " fmt, (mod)->name, ##__VA_ARGS__)
/* Transfer the section to the L1 memory */
int
module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
@ -44,7 +47,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_inst_sram_alloc(s->sh_size);
mod->arch.text_l1 = dest;
if (dest == NULL) {
pr_err("L1 inst memory allocation failed\n");
mod_err(mod, "L1 inst memory allocation failed\n");
return -1;
}
dma_memcpy(dest, (void *)s->sh_addr, s->sh_size);
@ -56,7 +59,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_alloc(s->sh_size);
mod->arch.data_a_l1 = dest;
if (dest == NULL) {
pr_err("L1 data memory allocation failed\n");
mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@ -68,7 +71,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_sram_zalloc(s->sh_size);
mod->arch.bss_a_l1 = dest;
if (dest == NULL) {
pr_err("L1 data memory allocation failed\n");
mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
@ -77,7 +80,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.data_b_l1 = dest;
if (dest == NULL) {
pr_err("L1 data memory allocation failed\n");
mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@ -87,7 +90,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l1_data_B_sram_alloc(s->sh_size);
mod->arch.bss_b_l1 = dest;
if (dest == NULL) {
pr_err("L1 data memory allocation failed\n");
mod_err(mod, "L1 data memory allocation failed\n");
return -1;
}
memset(dest, 0, s->sh_size);
@ -99,7 +102,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.text_l2 = dest;
if (dest == NULL) {
pr_err("L2 SRAM allocation failed\n");
mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@ -111,7 +114,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_alloc(s->sh_size);
mod->arch.data_l2 = dest;
if (dest == NULL) {
pr_err("L2 SRAM allocation failed\n");
mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
memcpy(dest, (void *)s->sh_addr, s->sh_size);
@ -123,7 +126,7 @@ module_frob_arch_sections(Elf_Ehdr *hdr, Elf_Shdr *sechdrs,
dest = l2_sram_zalloc(s->sh_size);
mod->arch.bss_l2 = dest;
if (dest == NULL) {
pr_err("L2 SRAM allocation failed\n");
mod_err(mod, "L2 SRAM allocation failed\n");
return -1;
}
@ -157,8 +160,8 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
Elf32_Sym *sym;
unsigned long location, value, size;
pr_debug("applying relocate section %u to %u\n",
relsec, sechdrs[relsec].sh_info);
mod_debug(mod, "applying relocate section %u to %u\n",
relsec, sechdrs[relsec].sh_info);
for (i = 0; i < sechdrs[relsec].sh_size / sizeof(*rel); i++) {
/* This is where to make the change */
@ -174,14 +177,14 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
#ifdef CONFIG_SMP
if (location >= COREB_L1_DATA_A_START) {
pr_err("cannot relocate in L1: %u (SMP kernel)\n",
mod_err(mod, "cannot relocate in L1: %u (SMP kernel)\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
#endif
pr_debug("location is %lx, value is %lx type is %d\n",
location, value, ELF32_R_TYPE(rel[i].r_info));
mod_debug(mod, "location is %lx, value is %lx type is %d\n",
location, value, ELF32_R_TYPE(rel[i].r_info));
switch (ELF32_R_TYPE(rel[i].r_info)) {
@ -200,12 +203,12 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
case R_BFIN_PCREL12_JUMP:
case R_BFIN_PCREL12_JUMP_S:
case R_BFIN_PCREL10:
pr_err("unsupported relocation: %u (no -mlong-calls?)\n",
mod_err(mod, "unsupported relocation: %u (no -mlong-calls?)\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
default:
pr_err("unknown relocation: %u\n",
mod_err(mod, "unknown relocation: %u\n",
ELF32_R_TYPE(rel[i].r_info));
return -ENOEXEC;
}
@ -222,7 +225,7 @@ apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab,
isram_memcpy((void *)location, &value, size);
break;
default:
pr_err("invalid relocation for %#lx\n", location);
mod_err(mod, "invalid relocation for %#lx\n", location);
return -ENOEXEC;
}
}