fa1dee0747
* Tue Jun 02 2020 CKI@GitLab <cki-project@redhat.com> [5.8.0-0.rc0.20200602gitf359287765c0.1]
- f359287765c0 rebase
- Fix update_scripts.sh unselective pattern sub (David Howells)
- Updated changelog for the release based on b0c3ba31be3e ("CKI@GitLab")
- Drop the static path configuration for the Sphinx docs (Jeremy Cline)
- Sign off generated configuration patches (Jeremy Cline)
- Use __make macro instead of make (Tom Stellard)
- redhat/configs: Enable CONFIG_SMC91X and disable CONFIG_SMC911X (Prarit Bhargava) [http://bugzilla.redhat.com/1722136]
Resolves: rhbz#
Signed-off-by: Justin M. Forbes <jforbes@fedoraproject.org>
186 lines
5.4 KiB
Diff
186 lines
5.4 KiB
Diff
From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
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From: Peter Jones <pjones@redhat.com>
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Date: Mon, 2 Oct 2017 18:22:13 -0400
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Subject: [PATCH] Add efi_status_to_str() and rework efi_status_to_err().
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This adds efi_status_to_str() for use when printing efi_status_t
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messages, and reworks efi_status_to_err() so that the two use a common
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list of errors.
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Upstream Status: RHEL only
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Signed-off-by: Peter Jones <pjones@redhat.com>
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---
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drivers/firmware/efi/efi.c | 124 +++++++++++++++++++++++++++----------
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include/linux/efi.h | 3 +
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2 files changed, 96 insertions(+), 31 deletions(-)
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diff --git a/drivers/firmware/efi/efi.c b/drivers/firmware/efi/efi.c
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index 9357d6b6e87c..d958d14d2a0c 100644
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--- a/drivers/firmware/efi/efi.c
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+++ b/drivers/firmware/efi/efi.c
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@@ -31,6 +31,7 @@
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#include <linux/ucs2_string.h>
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#include <linux/memblock.h>
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#include <linux/security.h>
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+#include <linux/bsearch.h>
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#include <asm/early_ioremap.h>
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@@ -826,40 +827,101 @@ int efi_mem_type(unsigned long phys_addr)
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}
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#endif
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+struct efi_error_code {
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+ efi_status_t status;
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+ int errno;
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+ const char *description;
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+};
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+
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+static const struct efi_error_code efi_error_codes[] = {
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+ { EFI_SUCCESS, 0, "Success"},
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+#if 0
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+ { EFI_LOAD_ERROR, -EPICK_AN_ERRNO, "Load Error"},
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+#endif
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+ { EFI_INVALID_PARAMETER, -EINVAL, "Invalid Parameter"},
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+ { EFI_UNSUPPORTED, -ENOSYS, "Unsupported"},
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+ { EFI_BAD_BUFFER_SIZE, -ENOSPC, "Bad Buffer Size"},
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+ { EFI_BUFFER_TOO_SMALL, -ENOSPC, "Buffer Too Small"},
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+ { EFI_NOT_READY, -EAGAIN, "Not Ready"},
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+ { EFI_DEVICE_ERROR, -EIO, "Device Error"},
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+ { EFI_WRITE_PROTECTED, -EROFS, "Write Protected"},
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+ { EFI_OUT_OF_RESOURCES, -ENOMEM, "Out of Resources"},
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+#if 0
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+ { EFI_VOLUME_CORRUPTED, -EPICK_AN_ERRNO, "Volume Corrupt"},
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+ { EFI_VOLUME_FULL, -EPICK_AN_ERRNO, "Volume Full"},
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+ { EFI_NO_MEDIA, -EPICK_AN_ERRNO, "No Media"},
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+ { EFI_MEDIA_CHANGED, -EPICK_AN_ERRNO, "Media changed"},
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+#endif
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+ { EFI_NOT_FOUND, -ENOENT, "Not Found"},
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+#if 0
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+ { EFI_ACCESS_DENIED, -EPICK_AN_ERRNO, "Access Denied"},
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+ { EFI_NO_RESPONSE, -EPICK_AN_ERRNO, "No Response"},
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+ { EFI_NO_MAPPING, -EPICK_AN_ERRNO, "No mapping"},
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+ { EFI_TIMEOUT, -EPICK_AN_ERRNO, "Time out"},
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+ { EFI_NOT_STARTED, -EPICK_AN_ERRNO, "Not started"},
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+ { EFI_ALREADY_STARTED, -EPICK_AN_ERRNO, "Already started"},
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+#endif
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+ { EFI_ABORTED, -EINTR, "Aborted"},
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+#if 0
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+ { EFI_ICMP_ERROR, -EPICK_AN_ERRNO, "ICMP Error"},
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+ { EFI_TFTP_ERROR, -EPICK_AN_ERRNO, "TFTP Error"},
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+ { EFI_PROTOCOL_ERROR, -EPICK_AN_ERRNO, "Protocol Error"},
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+ { EFI_INCOMPATIBLE_VERSION, -EPICK_AN_ERRNO, "Incompatible Version"},
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+#endif
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+ { EFI_SECURITY_VIOLATION, -EACCES, "Security Policy Violation"},
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+#if 0
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+ { EFI_CRC_ERROR, -EPICK_AN_ERRNO, "CRC Error"},
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+ { EFI_END_OF_MEDIA, -EPICK_AN_ERRNO, "End of Media"},
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+ { EFI_END_OF_FILE, -EPICK_AN_ERRNO, "End of File"},
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+ { EFI_INVALID_LANGUAGE, -EPICK_AN_ERRNO, "Invalid Languages"},
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+ { EFI_COMPROMISED_DATA, -EPICK_AN_ERRNO, "Compromised Data"},
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+
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+ // warnings
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+ { EFI_WARN_UNKOWN_GLYPH, -EPICK_AN_ERRNO, "Warning Unknown Glyph"},
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+ { EFI_WARN_DELETE_FAILURE, -EPICK_AN_ERRNO, "Warning Delete Failure"},
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+ { EFI_WARN_WRITE_FAILURE, -EPICK_AN_ERRNO, "Warning Write Failure"},
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+ { EFI_WARN_BUFFER_TOO_SMALL, -EPICK_AN_ERRNO, "Warning Buffer Too Small"},
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+#endif
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+};
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+
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+static int
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+efi_status_cmp_bsearch(const void *key, const void *item)
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+{
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+ u64 status = (u64)(uintptr_t)key;
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+ struct efi_error_code *code = (struct efi_error_code *)item;
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+
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+ if (status < code->status)
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+ return -1;
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+ if (status > code->status)
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+ return 1;
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+ return 0;
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+}
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+
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int efi_status_to_err(efi_status_t status)
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{
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- int err;
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-
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- switch (status) {
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- case EFI_SUCCESS:
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- err = 0;
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- break;
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- case EFI_INVALID_PARAMETER:
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- err = -EINVAL;
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- break;
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- case EFI_OUT_OF_RESOURCES:
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- err = -ENOSPC;
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- break;
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- case EFI_DEVICE_ERROR:
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- err = -EIO;
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- break;
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- case EFI_WRITE_PROTECTED:
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- err = -EROFS;
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- break;
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- case EFI_SECURITY_VIOLATION:
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- err = -EACCES;
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- break;
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- case EFI_NOT_FOUND:
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- err = -ENOENT;
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- break;
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- case EFI_ABORTED:
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- err = -EINTR;
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- break;
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- default:
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- err = -EINVAL;
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- }
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+ struct efi_error_code *found;
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+ size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
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- return err;
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+ found = bsearch((void *)(uintptr_t)status, efi_error_codes,
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+ sizeof(struct efi_error_code), num,
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+ efi_status_cmp_bsearch);
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+ if (!found)
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+ return -EINVAL;
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+ return found->errno;
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+}
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+
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+const char *
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+efi_status_to_str(efi_status_t status)
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+{
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+ struct efi_error_code *found;
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+ size_t num = sizeof(efi_error_codes) / sizeof(struct efi_error_code);
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+
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+ found = bsearch((void *)(uintptr_t)status, efi_error_codes,
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+ sizeof(struct efi_error_code), num,
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+ efi_status_cmp_bsearch);
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+ if (!found)
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+ return "Unknown error code";
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+ return found->description;
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}
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static DEFINE_SPINLOCK(efi_mem_reserve_persistent_lock);
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diff --git a/include/linux/efi.h b/include/linux/efi.h
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index 2c6495f72f79..b73b4bcaa32f 100644
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--- a/include/linux/efi.h
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+++ b/include/linux/efi.h
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@@ -43,6 +43,8 @@
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#define EFI_ABORTED (21 | (1UL << (BITS_PER_LONG-1)))
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#define EFI_SECURITY_VIOLATION (26 | (1UL << (BITS_PER_LONG-1)))
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+#define EFI_IS_ERROR(x) ((x) & (1UL << (BITS_PER_LONG-1)))
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+
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typedef unsigned long efi_status_t;
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typedef u8 efi_bool_t;
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typedef u16 efi_char16_t; /* UNICODE character */
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@@ -827,6 +829,7 @@ static inline bool efi_rt_services_supported(unsigned int mask)
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#endif
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extern int efi_status_to_err(efi_status_t status);
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+extern const char *efi_status_to_str(efi_status_t status);
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/*
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* Variable Attributes
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--
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2.26.2
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