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| author | Christophe Leroy <christophe.leroy@c-s.fr> | 2019-09-12 16:49:44 +0300 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2019-11-19 11:38:38 +0300 |
| commit | d538aadc2718a95bfd80095c66ea814824535b34 (patch) | |
| tree | bc7381c8a0f7fdead3dc51777db35f6e217eb39a /arch/powerpc/mm | |
| parent | 265c3491c4bc8d40587996d6ee2f447a7ccfb4f3 (diff) | |
| download | linux-d538aadc2718a95bfd80095c66ea814824535b34.tar.xz | |
powerpc/ioremap: warn on early use of ioremap()
Powerpc now has EARLY_IOREMAP.
Next step is to convert all early users of ioremap() to
early_ioremap().
Add a warning to help locate those users.
Signed-off-by: Christophe Leroy <christophe.leroy@c-s.fr>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/b4f03a68ee8e68773c8973d74ec35f9c82c72871.1568295907.git.christophe.leroy@c-s.fr
Diffstat (limited to 'arch/powerpc/mm')
| -rw-r--r-- | arch/powerpc/mm/ioremap_32.c | 1 | ||||
| -rw-r--r-- | arch/powerpc/mm/ioremap_64.c | 2 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/powerpc/mm/ioremap_32.c b/arch/powerpc/mm/ioremap_32.c index f36121f25243..743e11384dea 100644 --- a/arch/powerpc/mm/ioremap_32.c +++ b/arch/powerpc/mm/ioremap_32.c @@ -68,6 +68,7 @@ __ioremap_caller(phys_addr_t addr, unsigned long size, pgprot_t prot, void *call /* * Should check if it is a candidate for a BAT mapping */ + pr_warn("ioremap() called early from %pS. Use early_ioremap() instead\n", caller); err = early_ioremap_range(ioremap_bot - size, p, size, prot); if (err) diff --git a/arch/powerpc/mm/ioremap_64.c b/arch/powerpc/mm/ioremap_64.c index fd29e51700cd..50a99d9684f7 100644 --- a/arch/powerpc/mm/ioremap_64.c +++ b/arch/powerpc/mm/ioremap_64.c @@ -81,6 +81,8 @@ void __iomem *__ioremap_caller(phys_addr_t addr, unsigned long size, if (slab_is_available()) return do_ioremap(paligned, offset, size, prot, caller); + pr_warn("ioremap() called early from %pS. Use early_ioremap() instead\n", caller); + err = early_ioremap_range(ioremap_bot, paligned, size, prot); if (err) return NULL; |