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zdump: PTR_(SUB|ADD) cast result to void pointer

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This cast makes the macros easier to use without getting compiler warnings.

e.g.

dfo_elf.c: In function 'dfo_elf_init':
dfo_elf.c:343:20: warning: assignment to 'Elf64_Phdr *' from incompatible pointer type 'char *' [-Wincompatible-pointer-types]
  343 |         phdrs_load = PTR_ADD(phdr_notes, sizeof(Elf64_Phdr) * phdrs_notes_count);

Reviewed-by: Alexander Egorenkov <egorenar@linux.ibm.com>
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Signed-off-by: Jan Höppner <hoeppner@linux.ibm.com>
This commit is contained in:
Marc Hartmayer
2021-09-29 12:13:59 +00:00
committed by Jan Höppner
parent 5b0115fdb4
commit 5160f41079
1 changed files with 2 additions and 2 deletions
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zdump/zg.h
+2 -2
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@@ -140,8 +140,8 @@ static inline u32 zg_csum_partial(const void *buf, int len, u32 sum)
/*
* Pointer atrithmetic
*/
#define PTR_SUB(x, y) (((char *) (x)) - ((unsigned long) (y)))
#define PTR_ADD(x, y) (((char *) (x)) + ((unsigned long) (y)))
#define PTR_SUB(x, y) ((void *)(((char *) (x)) - ((unsigned long) (y))))
#define PTR_ADD(x, y) ((void *)(((char *) (x)) + ((unsigned long) (y))))
#define PTR_DIFF(x, y) ((unsigned long)PTR_SUB(x, y))
/*