ELF: Remove elf_core_copy_kernel_regs()

x86-32 was the last architecture that implemented separate user and
kernel registers.

Signed-off-by: Brian Gerst <brgerst@gmail.com>
Signed-off-by: Borislav Petkov <bp@suse.de>
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Andy Lutomirski <luto@kernel.org>
Acked-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220325153953.162643-3-brgerst@gmail.com

diff --git a/arch/powerpc/kernel/fadump.c b/arch/powerpc/kernel/fadump.c
index 65562c4..4c09c66 100644 (file)
--- a/arch/powerpc/kernel/fadump.c
+++ b/arch/powerpc/kernel/fadump.c
@@ -752,7 +752,7 @@ u32 *__init fadump_regs_to_elf_notes(u32 *buf, struct pt_regs *regs)
         * FIXME: How do i get PID? Do I really need it?
         * prstatus.pr_pid = ????
         */
-       elf_core_copy_kernel_regs(&prstatus.pr_reg, regs);
+       elf_core_copy_regs(&prstatus.pr_reg, regs);
        buf = append_elf_note(buf, CRASH_CORE_NOTE_NAME, NT_PRSTATUS,
                              &prstatus, sizeof(prstatus));
        return buf;

diff --git a/arch/powerpc/platforms/powernv/opal-core.c b/arch/powerpc/platforms/powernv/opal-core.c
index b97bc17..adcb1a1 100644 (file)
--- a/arch/powerpc/platforms/powernv/opal-core.c
+++ b/arch/powerpc/platforms/powernv/opal-core.c
@@ -112,7 +112,7 @@ static void __init fill_prstatus(struct elf_prstatus *prstatus, int pir,
                          struct pt_regs *regs)
 {
        memset(prstatus, 0, sizeof(struct elf_prstatus));
-       elf_core_copy_kernel_regs(&(prstatus->pr_reg), regs);
+       elf_core_copy_regs(&(prstatus->pr_reg), regs);
 
        /*
         * Overload PID with PIR value.

diff --git a/include/linux/elfcore.h b/include/linux/elfcore.h
index f8e206e..346a8b5 100644 (file)
--- a/include/linux/elfcore.h
+++ b/include/linux/elfcore.h
@@ -84,15 +84,6 @@ static inline void elf_core_copy_regs(elf_gregset_t *elfregs, struct pt_regs *re
 #endif
 }
 
-static inline void elf_core_copy_kernel_regs(elf_gregset_t *elfregs, struct pt_regs *regs)
-{
-#ifdef ELF_CORE_COPY_KERNEL_REGS
-       ELF_CORE_COPY_KERNEL_REGS((*elfregs), regs);
-#else
-       elf_core_copy_regs(elfregs, regs);
-#endif
-}
-
 static inline int elf_core_copy_task_regs(struct task_struct *t, elf_gregset_t* elfregs)
 {
 #if defined (ELF_CORE_COPY_TASK_REGS)

diff --git a/kernel/kexec_core.c b/kernel/kexec_core.c
index 68480f7..be4b54c 100644 (file)
--- a/kernel/kexec_core.c
+++ b/kernel/kexec_core.c
@@ -1078,7 +1078,7 @@ void crash_save_cpu(struct pt_regs *regs, int cpu)
                return;
        memset(&prstatus, 0, sizeof(prstatus));
        prstatus.common.pr_pid = current->pid;
-       elf_core_copy_kernel_regs(&prstatus.pr_reg, regs);
+       elf_core_copy_regs(&prstatus.pr_reg, regs);
        buf = append_elf_note(buf, KEXEC_CORE_NOTE_NAME, NT_PRSTATUS,
                              &prstatus, sizeof(prstatus));
        final_note(buf);