Le 18/10/2021 à 08:27, Nicholas Piggin a écrit :

Excerpts from Christophe Leroy's message of October 17, 2021 10:38 pm:

quoted

In preparation of making func_desc_t generic, change the ELFv2
version to a struct containing 'addr' element.

This allows using single helpers common to ELFv1 and ELFv2.

Signed-off-by: Christophe Leroy <redacted>

quoted

---
  arch/powerpc/kernel/module_64.c | 32 ++++++++++++++------------------
  1 file changed, 14 insertions(+), 18 deletions(-)

diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index a89da0ee25e2..b687ef88c4c4 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c

@@ -33,19 +33,13 @@
  #ifdef PPC64_ELF_ABI_v2
  
  /* An address is simply the address of the function. */
-typedef unsigned long func_desc_t;
+typedef struct {
+	unsigned long addr;
+} func_desc_t;

I'm not quite following why this change is done. I guess it is so you
can move this func_desc_t type into core code, but why do that? Is it
just to avoid using the preprocessor?

I explained it in patch 7 but yes it probably also deserves some more 
explanation here as well.

That's right, it's to avoid having to spread #ifdefs everywhere.

On its own this patch looks okay.

Acked-by: Nicholas Piggin <npiggin@gmail.com>