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powerpc/fadump: Annotate endianness cast with __force

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Sparse reports an endianness error with the else case of

  val = (cpu_endian ? be64_to_cpu(reg_entry->reg_val) :
         (u64)(reg_entry->reg_val));

This is a safe operation because the code is explicitly working with
dynamic endianness, so add the __force annotation to tell Sparse to
ignore it.

Signed-off-by: Benjamin Gray <bgray@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/20231011053711.93427-13-bgray@linux.ibm.com
This commit is contained in:
Benjamin Gray 2023-10-11 16:37:11 +11:00 • committed by Michael Ellerman
parent 82f635243f
commit b574b817cc
1 changed files with 1 additions and 1 deletions
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2
arch/powerpc/platforms/powernv/opal-fadump.h
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@ -135,7 +135,7 @@ static inline void opal_fadump_read_regs(char *bufp, unsigned int regs_cnt,
for (i = 0; i < regs_cnt; i++, bufp += reg_entry_size) {
reg_entry = (struct hdat_fadump_reg_entry *)bufp;
val = (cpu_endian ? be64_to_cpu(reg_entry->reg_val) :
(u64)(reg_entry->reg_val));
(u64 __force)(reg_entry->reg_val));
opal_fadump_set_regval_regnum(regs,
be32_to_cpu(reg_entry->reg_type),
be32_to_cpu(reg_entry->reg_num),