Subject: linux-next: build failure after merge of the edac-amd tree

From: Stephen Rothwell <[email-masked]>
Date: Mon, 1 Jun 2015 17:07:42 +1000

Hi Borislav,

After merging the edac-amd tree, today's linux-next build (x86_64
allmodconfig) failed like this:

drivers/edac/xgene_edac.c: In function 'xgene_edac_pmd_l2c_version1':
drivers/edac/xgene_edac.c:792:2: error: implicit declaration of function 'MIDR_VARIANT' [-Werror=implicit-function-declaration]
  switch (MIDR_VARIANT(read_cpuid_id())) {
  ^
drivers/edac/xgene_edac.c:792:2: error: implicit declaration of function 'read_cpuid_id' [-Werror=implicit-function-declaration]
drivers/edac/xgene_edac.c:794:3: error: implicit declaration of function 'MIDR_REVISION' [-Werror=implicit-function-declaration]
   switch (MIDR_REVISION(read_cpuid_id())) {
   ^
drivers/edac/xgene_edac.c:797:4: error: implicit declaration of function 'read_cpuid' [-Werror=implicit-function-declaration]
    switch (REVIDR_MINOR_REV(read_cpuid(REVIDR_EL1))) {
    ^
drivers/edac/xgene_edac.c:797:40: error: 'REVIDR_EL1' undeclared (first use in this function)
    switch (REVIDR_MINOR_REV(read_cpuid(REVIDR_EL1))) {
                                        ^
drivers/edac/xgene_edac.c:790:37: note: in definition of macro 'REVIDR_MINOR_REV'
  #define REVIDR_MINOR_REV(revidr) ((revidr) & 0x00000007)
                                     ^
drivers/edac/xgene_edac.c:797:40: note: each undeclared identifier is reported only once for each function it appears in
    switch (REVIDR_MINOR_REV(read_cpuid(REVIDR_EL1))) {
                                        ^
drivers/edac/xgene_edac.c:790:37: note: in definition of macro 'REVIDR_MINOR_REV'
  #define REVIDR_MINOR_REV(revidr) ((revidr) & 0x00000007)
                                     ^

Caused by commit  ("EDAC: Add APM X-Gene SoC EDAC driver").  You can't
use COMPIlE_TEST for drivers that use arch specific APIs ...

I have used the edac-amd tree from next-20150529 for today.
-- 
Cheers,
Stephen Rothwell                    [email-masked]