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selftests/powerpc: Add automatically allocating read_file

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A couple of tests roll their own auto-allocating file read logic.

Add a generic implementation and convert them to use it.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20230203003947.38033-6-bgray@linux.ibm.com
This commit is contained in:
Benjamin Gray
2023-02-03 11:39:47 +11:00
committed by Michael Ellerman
parent 5c20de5788
commit 8d7253dc44
5 changed files with 71 additions and 109 deletions
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tools/testing/selftests/powerpc/include/utils.h
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@@ -42,6 +42,7 @@ int parse_ulong(const char *buffer, size_t count, unsigned long *result, int bas
int read_file(const char *path, char *buf, size_t count, size_t *len);
int write_file(const char *path, const char *buf, size_t count);
int read_file_alloc(const char *path, char **buf, size_t *len);
int read_long(const char *path, long *result, int base);
int write_long(const char *path, long result, int base);
int read_ulong(const char *path, unsigned long *result, int base);