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arm64 fixes/cleanups:

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- Fix the memset() size when re-initialising the SVE state.
 
 - Mark __stack_chk_guard as __ro_after_init.
 
 - Remove duplicate include.
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes and cleanups from Catalin Marinas:

 - Fix the memset() size when re-initialising the SVE state.

 - Mark __stack_chk_guard as __ro_after_init.

 - Remove duplicate include.

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: Mark __stack_chk_guard as __ro_after_init
  arm64/kernel: remove duplicate include in process.c
  arm64/sve: Use correct size when reinitialising SVE state
This commit is contained in:
Linus Torvalds 2021-09-17 08:59:27 -07:00
commit 7f2cd14129
2 changed files with 2 additions and 3 deletions
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2
arch/arm64/kernel/fpsimd.c
View File

@ -513,7 +513,7 @@ size_t sve_state_size(struct task_struct const *task)
void sve_alloc(struct task_struct *task) void sve_alloc(struct task_struct *task)
{ {
if (task->thread.sve_state) { if (task->thread.sve_state) {
memset(task->thread.sve_state, 0, sve_state_size(current)); memset(task->thread.sve_state, 0, sve_state_size(task));
return; return;
} }

3
arch/arm64/kernel/process.c
View File

@ -18,7 +18,6 @@
#include <linux/mman.h> #include <linux/mman.h>
#include <linux/mm.h> #include <linux/mm.h>
#include <linux/nospec.h> #include <linux/nospec.h>
#include <linux/sched.h>
#include <linux/stddef.h> #include <linux/stddef.h>
#include <linux/sysctl.h> #include <linux/sysctl.h>
#include <linux/unistd.h> #include <linux/unistd.h>
@ -58,7 +57,7 @@
#if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK) #if defined(CONFIG_STACKPROTECTOR) && !defined(CONFIG_STACKPROTECTOR_PER_TASK)
#include <linux/stackprotector.h> #include <linux/stackprotector.h>
unsigned long __stack_chk_guard __read_mostly; unsigned long __stack_chk_guard __ro_after_init;
EXPORT_SYMBOL(__stack_chk_guard); EXPORT_SYMBOL(__stack_chk_guard);
#endif #endif