Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
Merge tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc fix from Michael Ellerman:
- On Power8 bare metal, fix creation of RNG platform devices, which are
needed for the /dev/hwrng driver to probe correctly.
Thanks to Jason A. Donenfeld, and Sachin Sant.
* tag 'powerpc-5.19-5' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
powerpc/powernv: delay rng platform device creation until later in boot
+10
-6
+10
-6
arch/powerpc/platforms/powernv/rng.c
+10
-6
arch/powerpc/platforms/powernv/rng.c
···
176
176
NULL) != pnv_get_random_long_early)
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177
return 0;
178
178
179
-
for_each_compatible_node(dn, NULL, "ibm,power-rng") {
180
-
if (rng_create(dn))
181
-
continue;
182
-
/* Create devices for hwrng driver */
183
-
of_platform_device_create(dn, NULL, NULL);
184
-
}
179
+
for_each_compatible_node(dn, NULL, "ibm,power-rng")
180
+
rng_create(dn);
185
181
186
182
if (!ppc_md.get_random_seed)
187
183
return 0;
···
201
205
202
206
static int __init pnv_rng_late_init(void)
203
207
{
208
+
struct device_node *dn;
204
209
unsigned long v;
210
+
205
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/* In case it wasn't called during init for some other reason. */
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if (ppc_md.get_random_seed == pnv_get_random_long_early)
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213
pnv_get_random_long_early(&v);
214
+
215
+
if (ppc_md.get_random_seed == powernv_get_random_long) {
216
+
for_each_compatible_node(dn, NULL, "ibm,power-rng")
217
+
of_platform_device_create(dn, NULL, NULL);
218
+
}
219
+
208
220
return 0;
209
221
}
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machine_subsys_initcall(powernv, pnv_rng_late_init);