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authorKees Cook <keescook@chromium.org>2020-05-13 14:35:03 -0700
committerKees Cook <keescook@chromium.org>2020-05-30 10:34:03 -0700
commit791205e3ec6081a8da6f00621e3453d622dc41e7 (patch)
tree840bdcf480412bd162005b70d4609e31c33087da /include
parent3524e688b8ee50b0edc76f0e020727eb6c684dbc (diff)
pstore/ram: Introduce max_reason and convert dump_oops
Now that pstore_register() can correctly pass max_reason to the kmesg dump facility, introduce a new "max_reason" module parameter and "max-reason" Device Tree field. The "dump_oops" module parameter and "dump-oops" Device Tree field are now considered deprecated, but are now automatically converted to their corresponding max_reason values when present, though the new max_reason setting has precedence. For struct ramoops_platform_data, the "dump_oops" member is entirely replaced by a new "max_reason" member, with the only existing user updated in place. Additionally remove the "reason" filter logic from ramoops_pstore_write(), as that is not specifically needed anymore, though technically this is a change in behavior for any ramoops users also setting the printk.always_kmsg_dump boot param, which will cause ramoops to behave as if max_reason was set to KMSG_DUMP_MAX. Co-developed-by: Pavel Tatashin <pasha.tatashin@soleen.com> Signed-off-by: Pavel Tatashin <pasha.tatashin@soleen.com> Link: https://lore.kernel.org/lkml/20200515184434.8470-6-keescook@chromium.org/ Signed-off-by: Kees Cook <keescook@chromium.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/pstore_ram.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/include/linux/pstore_ram.h b/include/linux/pstore_ram.h
index 9cb9b9067298..9f16afec7290 100644
--- a/include/linux/pstore_ram.h
+++ b/include/linux/pstore_ram.h
@@ -133,7 +133,7 @@ struct ramoops_platform_data {
unsigned long console_size;
unsigned long ftrace_size;
unsigned long pmsg_size;
- int dump_oops;
+ int max_reason;
u32 flags;
struct persistent_ram_ecc_info ecc_info;
};