When compiling for 32-bit:
util_lib/elf_info.c: In function ‘dump_dmesg_lockless’:
util_lib/elf_info.c:1095:39: warning: format ‘%lu’ expects argument of type
‘long unsigned int’, but argument 3 has type ‘size_t’ {aka ‘unsigned int’}
[-Wformat=]
1095 | fprintf(stderr, "Failed to malloc %lu bytes for prb: %s\n",
| ~~^
| |
| long unsigned int
| %u
1096 | printk_ringbuffer_sz, strerror(errno));
| ~~~~~~~~~~~~~~~~~~~~
| |
| size_t {aka unsigned int}
util_lib/elf_info.c:1101:49: warning: format ‘%lu’ expects argument of type
‘long unsigned int’, but argument 3 has type ‘size_t’ {aka ‘unsigned int’}
[-Wformat=]
1101 | fprintf(stderr, "Failed to read prb of size %lu bytes: %s\n",
| ~~^
| |
| long unsigned int
| %u
1102 | printk_ringbuffer_sz, strerror(errno));
| ~~~~~~~~~~~~~~~~~~~~
| |
| size_t {aka unsigned int}
Indeed, "size_t" is "unsigned int" on 32-bit platforms, and "unsigned
long" on 64-bit platforms.
Fix this by formatting using "%zu".
Fixes: 4149df9005f2cdd2 ("printk: add support for lockless ringbuffer")
Signed-off-by: Geert Uytterhoeven <[email protected]>
---
util_lib/elf_info.c | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/util_lib/elf_info.c b/util_lib/elf_info.c
index 7c0a2c345379a7ca..676926ca8c5f3766 100644
--- a/util_lib/elf_info.c
+++ b/util_lib/elf_info.c
@@ -1092,13 +1092,13 @@ static void dump_dmesg_lockless(int fd, void
(*handler)(char*, unsigned int))
kaddr = read_file_pointer(fd, vaddr_to_offset(prb_vaddr));
m.prb = calloc(1, printk_ringbuffer_sz);
if (!m.prb) {
- fprintf(stderr, "Failed to malloc %lu bytes for prb: %s\n",
+ fprintf(stderr, "Failed to malloc %zu bytes for prb: %s\n",
printk_ringbuffer_sz, strerror(errno));
exit(64);
}
ret = pread(fd, m.prb, printk_ringbuffer_sz, vaddr_to_offset(kaddr));
if (ret != printk_ringbuffer_sz) {
- fprintf(stderr, "Failed to read prb of size %lu bytes: %s\n",
+ fprintf(stderr, "Failed to read prb of size %zu bytes: %s\n",
printk_ringbuffer_sz, strerror(errno));
exit(65);
}
--
2.25.1
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