From: Daniel Drake drake@endlessm.com
[ Upstream commit 822f5845f710e57d7e2df1fd1ee00d6e19d334fe ]
The Intel Compute Stick STCK1A8LFC and Weibu F3C platforms both log 2 error messages during boot:
efi: requested map not found. esrt: ESRT header is not in the memory map.
Searching the web, this seems to affect many other platforms too. Since these messages are logged as errors, they appear on-screen during the boot process even when using the "quiet" boot parameter used by distros.
Demote the ESRT error to a warning so that it does not appear on-screen, and delete the error logging from efi_mem_desc_lookup; both callsites of that function log more specific messages upon failure.
Out of curiosity I looked closer at the Weibu F3C. There is no entry in the UEFI-provided memory map which corresponds to the ESRT pointer, but hacking the code to map it anyway, the ESRT does appear to be valid with 2 entries.
Signed-off-by: Daniel Drake drake@endlessm.com Cc: Matt Fleming matt@codeblueprint.co.uk Acked-by: Peter Jones pjones@redhat.com Signed-off-by: Ard Biesheuvel ard.biesheuvel@linaro.org Signed-off-by: Sasha Levin alexander.levin@verizon.com --- drivers/firmware/efi/efi.c | 1 - drivers/firmware/efi/esrt.c | 2 +- 2 files changed, 1 insertion(+), 2 deletions(-)
diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c index a4944e22f294..96c3e43439b6 100644 --- a/drivers/firmware/efi/efi.c +++ b/drivers/firmware/efi/efi.c @@ -385,7 +385,6 @@ int __init efi_mem_desc_lookup(u64 phys_addr, efi_memory_desc_t *out_md) return 0; } } - pr_err_once("requested map not found.\n"); return -ENOENT; }
diff --git a/drivers/firmware/efi/esrt.c b/drivers/firmware/efi/esrt.c index 14914074f716..d81560f12437 100644 --- a/drivers/firmware/efi/esrt.c +++ b/drivers/firmware/efi/esrt.c @@ -254,7 +254,7 @@ void __init efi_esrt_init(void)
rc = efi_mem_desc_lookup(efi.esrt, &md); if (rc < 0) { - pr_err("ESRT header is not in the memory map.\n"); + pr_warn("ESRT header is not in the memory map.\n"); return; }